diff --git a/Spring 2018 - Slides and Materials/Session_9_PoSTagging_Lemmatization/Pipfile.lock b/Spring 2018 - Slides and Materials/Session_9_PoSTagging_Lemmatization/Pipfile.lock
index 0dc680e..d4cff45 100644
--- a/Spring 2018 - Slides and Materials/Session_9_PoSTagging_Lemmatization/Pipfile.lock	
+++ b/Spring 2018 - Slides and Materials/Session_9_PoSTagging_Lemmatization/Pipfile.lock	
@@ -3,19 +3,6 @@
         "hash": {
             "sha256": "6ab4996b524916cc440710e97def286f93ba64859538416ce43e0b88c018fc48"
         },
-        "host-environment-markers": {
-            "implementation_name": "cpython",
-            "implementation_version": "3.6.4",
-            "os_name": "posix",
-            "platform_machine": "x86_64",
-            "platform_python_implementation": "CPython",
-            "platform_release": "16.7.0",
-            "platform_system": "Darwin",
-            "platform_version": "Darwin Kernel Version 16.7.0: Thu Jan 11 22:59:40 PST 2018; root:xnu-3789.73.8~1/RELEASE_X86_64",
-            "python_full_version": "3.6.4",
-            "python_version": "3.6",
-            "sys_platform": "darwin"
-        },
         "pipfile-spec": 6,
         "requires": {
             "python_version": "3.6"
@@ -29,152 +16,148 @@
         ]
     },
     "default": {
+        "click": {
+            "hashes": [
+                "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
+                "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
+            ],
+            "version": "==7.1.2"
+        },
         "cltk": {
             "hashes": [
                 "sha256:a8b65516deeaa98e8ab5a57083f181576da560b5bb6302d12cf7fa0aa7320d8f"
             ],
+            "index": "pypi",
             "version": "==0.1.83"
         },
-        "gitdb2": {
+        "gitdb": {
             "hashes": [
-                "sha256:cf9a4b68e8c4da8d42e48728c944ff7af2d8c9db303ac1ab32eac37aa4194b0e",
-                "sha256:b60e29d4533e5e25bb50b7678bbc187c8f6bcff1344b4f293b2ba55c85795f09"
+                "sha256:91f36bfb1ab7949b3b40e23736db18231bf7593edada2ba5c3a174a7b23657ac",
+                "sha256:c9e1f2d0db7ddb9a704c2a0217be31214e91a4fe1dea1efad19ae42ba0c285c9"
             ],
-            "version": "==2.0.3"
+            "version": "==4.0.5"
         },
         "gitpython": {
             "hashes": [
-                "sha256:b8367c432de995dc330b5b146c5bfdc0926b8496e100fda6692134e00c0dcdc5",
-                "sha256:ad61bc25deadb535b047684d06f3654c001d9415e1971e51c9c20f5b510076e9"
+                "sha256:2db287d71a284e22e5c2846042d0602465c7434d910406990d5b74df4afb0858",
+                "sha256:fa3b92da728a457dd75d62bb5f3eb2816d99a7fe6c67398e260637a40e3fafb5"
+            ],
+            "version": "==3.1.7"
+        },
+        "joblib": {
+            "hashes": [
+                "sha256:8f52bf24c64b608bf0b2563e0e47d6fcf516abc8cfafe10cfd98ad66d94f92d6",
+                "sha256:d348c5d4ae31496b2aa060d6d9b787864dd204f9480baaa52d18850cb43e9f49"
             ],
-            "version": "==2.1.8"
+            "version": "==0.16.0"
         },
         "nltk": {
             "hashes": [
-                "sha256:2661f9971d983db314bbebd51ba770811a362c6597fd0f303bb1d3beadcb4834",
-                "sha256:8a3bad9ff7f67d2828a7915c2fab93e6ca910c2015ef40799e1805fccf2354e5"
+                "sha256:845365449cd8c5f9731f7cb9f8bd6fd0767553b9d53af9eb1b3abf7700936b35"
             ],
-            "version": "==3.2.5"
+            "version": "==3.5"
         },
         "py2neo": {
             "hashes": [
                 "sha256:8177a9b2c4d23a3ce26f02d3d6be92ac49cb7520e88ec1b41d8c6e86774938b8"
             ],
+            "index": "pypi",
             "version": "==3.1.2"
         },
         "pycollatinus": {
             "hashes": [
                 "sha256:7397c7708f9709c6280a7d72eb87ae8c6105d683069fe1a6850461ae41997a32"
             ],
+            "index": "pypi",
             "version": "==0.1.5"
         },
         "python-crfsuite": {
             "hashes": [
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-                "sha256:2be069bd54907c457f8067fec28b38bef01019c19f6200d25e987213bcb66e1c",
-                "sha256:349d3c0f1cb2e395a7064e96701329d794b09d42c4c9177d2a3e3bd9e0e6635e",
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-            ],
-            "version": "==0.9.5"
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+                "sha256:1d2faa31771df2370bcf15855aa403416d14f088d3e81b19de857ea013a697b0",
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+                "sha256:5ebb57783a0723d46d82d462fbfd6111e62e48533bfe1fbcd5ffb8dc1ba7a573",
+                "sha256:8704a6b7c7c64c4aa158125c89e9e08377a0169e83c75094aa65833b771d3078",
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+                "sha256:b1568ab4c7a97f54b4d57f5b9795a4d6d841f7dc7923dd40414e34a93500cc42",
+                "sha256:b3da774cedf542202533b014347b86fbc25191356f0d5568f9784f8eb77e7ef6",
+                "sha256:b46811138745d9d62ff7674bc7a14a9cc974c065dadfc6f78e0dc19832066ec2",
+                "sha256:bb57e551d86c83ec6a719c9884c571cb9a9b013a78fe0c317b0677c3c9542965",
+                "sha256:c56f34b50049de3127353214af45bc9b437fd6c23202b83abb0b8052d86a248b",
+                "sha256:caa980287a90fd8c659c6d936f5f4a5b28d0157ce530ad90a6430faed1cf147f",
+                "sha256:cd18b340c5a45ec200e8ce1167318dfc5d915ca9aad459dfa8675d014fd30650",
+                "sha256:d03ca82d34b45c6efa8f086eb05c7217e4a7fed34640e714775deaa08b61e6d2",
+                "sha256:d386d3a1e8d2065b4770c0dd06877ac28d7a94f61cd8447af3fa7a49551e98f9",
+                "sha256:df9edb37c90744c3aafd5d7dbf7c50fc486fe189e0e85a1deaf7af995ecac7b5",
+                "sha256:e905914a688138c29205a6752e768965ef3b0bfc46102b4a94316fd00dac7bc2"
+            ],
+            "version": "==0.9.7"
         },
         "pyuca": {
             "hashes": [
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-                "sha256:8a382fe74627f08c0d18908c0713ca4a20aad5385f077579e56208beea2893b2"
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+                "sha256:abaa12e1bd2c7c68ca8396ff8383bc0654a739cef3ae68fd7af58bf29af0a91e"
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-            "version": "==3.12"
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-                "sha256:eee4d94b1a626490fc8170ffd788883f8c641b576e11ba9b4a29c9f6623371e0",
-                "sha256:32f6408dbca35040bc65f9f4ae1444d5546411fde989cb71443a182dd643305e",
-                "sha256:a9243d7b359b72c681a2c32eaa7ace8d346b7e8ce09d172a683acf6853161d9c",
-                "sha256:494bed6396a20d3aa6376bdf2d3fbb1005b8f4339558d8ac7b53256755f80303",
-                "sha256:b44624a38d07d3c954c84ad302c29f7930f4bf01443beef5589e9157b14e2a29"
-            ],
-            "version": "==2018.2.21"
-        },
-        "six": {
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-        },
-        "smmap2": {
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-            "version": "==2.0.3"
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+                "sha256:7a2dd66d2d4df34fa82c9dc85657c5e019b87932019947faece7983f2089a840",
+                "sha256:8a51f2c6d1f884e98846a0a9021ff6861bdb98457879f412fdc2b42d14494067",
+                "sha256:9c568495e35599625f7b999774e29e8d6b01a6fb684d77dee1f56d41b11b40cd",
+                "sha256:9eddaafb3c48e0900690c1727fba226c4804b8e6127ea409689c3bb492d06de4",
+                "sha256:bbb332d45b32df41200380fff14712cb6093b61bd142272a10b16778c418e98e",
+                "sha256:bc3d98f621898b4a9bc7fecc00513eec8f40b5b83913d74ccb445f037d58cd89",
+                "sha256:c11d6033115dc4887c456565303f540c44197f4fc1a2bfb192224a301534888e",
+                "sha256:c50a724d136ec10d920661f1442e4a8b010a4fe5aebd65e0c2241ea41dbe93dc",
+                "sha256:d0a5095d52b90ff38592bbdc2644f17c6d495762edf47d876049cfd2968fbccf",
+                "sha256:d6cff2276e502b86a25fd10c2a96973fdb45c7a977dca2138d661417f3728341",
+                "sha256:e46d13f38cfcbb79bfdb2964b0fe12561fe633caf964a77a5f8d4e45fe5d2ef7"
+            ],
+            "version": "==2020.7.14"
+        },
+        "smmap": {
+            "hashes": [
+                "sha256:54c44c197c819d5ef1991799a7e30b662d1e520f2ac75c9efbeb54a742214cf4",
+                "sha256:9c98bbd1f9786d22f14b3d4126894d56befb835ec90cef151af566c7e19b5d24"
+            ],
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@@ -182,84 +165,150 @@
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         "treetagger-python": {
             "editable": true,
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+            "git": "ssh://git@github.com/mromanello/treetagger-python.git",
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                 "sha256:7ca5633dbfa9e0e0fa400d3151a8a0c4bec53bd2ecedc0a67705b17565c31a83",
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@@ -270,53 +319,54 @@
         },
         "ipywidgets": {
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@@ -327,104 +377,139 @@
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@@ -434,167 +519,193 @@
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@@ -605,10 +716,17 @@
         },
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+            "version": "==3.5.1"
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     }
 }