malformed owl

[justin2004]

$ ~/apache-jena-5.1.0/bin/riot --validate iao.owl
05:11:29 WARN  riot            :: [line: 7974, col: 45] Bad IRI: <urn:swrl#e> Code: 61/SCHEME_PATTERN_MATCH_FAILED in PATH: The scheme specific syntax rules are violated. 
05:11:29 WARN  riot            :: [line: 7977, col: 45] Bad IRI: <urn:swrl#d> Code: 61/SCHEME_PATTERN_MATCH_FAILED in PATH: The scheme specific syntax rules are violated.
... 

here is one of the offending lines:

<rdf:Description rdf:about="urn:swrl#e">

[justin2004]

looks like jena expects a fully qualified URI.
e.g.

<hi:hi rdf:resource="http://somethinghere.com/swrl#e"/>

[alanruttenberg]

There's no equivalent of "fully qualified" (as opposed to relative) for urns. The urn: should be fine. Looks like a riot bug to me.

[justin2004]

the relations ontology had the same situation and jim fixed them:

oborel/obo-relations#803 (comment)

it sounds like an old version of the OWL API created those.

[alanruttenberg]

There was an error in that the urns needed another colon. owlcs/owlapi#732 As the issue points out, most software doesn't (and shouldn't ) care.

[justin2004]

andy says the URN isn't valid:
apache/jena#2626 (comment)