Updated comments

Signed-off-by: Thomas Hempen <[email protected]>

Author: thempen

osi_common.proto

@@ -456,8 +456,10 @@ message BoundingBox
         //
         TYPE_BASE_STRUCTURE = 2;
 
-        // An overhanging, integral part of an object, which is not 
-        // temporarily attached, e.g. a tree crown, or a light pole arm.
+        // A protruding, integral part of an object, which is not 
+        // temporarily attached, e.g. a tree crown, a light pole arm, or a 
+		// parking house gate. The protruding structure is meant to be an 
+		// additional part to a base structure.
         //
         TYPE_PROTRUDING_STRUCTURE = 3;