BioPortal can't load KiSAO v2.34 due to invalid date values

[jvendetti]

We were unable to successfully process and display KiSAO in the BioPortal ontology repository because of some invalid date values in the OWL ontology source file:

1. On line 322 the date value is recorded as a string of "24JAN2009":

<dc:created rdf:datatype="http://www.w3.org/2001/XMLSchema#date">24JAN2009</dc:created>

2. On line 13,473 the date value contains two consecutive hyphen characters:

<dc:created rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2021--04-27</dc:created>

3. On line 13,967 the date value doesn't comply to YYYY-MM-DD formatting:

<dc:created rdf:datatype="http://www.w3.org/2001/XMLSchema#date">06-04-2021</dc:created>

4. There are 32 occurrences where a date value of 06-03-2021 is used, which doesn't follow YYYY-MM-DD formatting. One such example is on line 15,089.

I manually fixed all occurrences of the invalid dates values in the OWL file that resides on the BioPortal production server, and reprocessed the ontology today. Currently the ontology content is accessible, but will error out again the next time a new version is uploaded unless the date values are repaired.