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From: Mikel E. A. <me...@fi...> - 2011-05-09 08:23:12
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I see. All clear now thx On ar., 2011.eko mairen 03a 19:46, Chris Mungall wrote: > It is redundant by design. You're looking at the inferred version of SO, which has the inferred subclass axioms asserted. Not all of the inferred axioms are trivial restatements. E.g. > > [Term] > id: SO:0000089 > name: kinetoplast_gene > def: "A gene located in kinetoplast sequence." [SO:xp] > synonym: "kinetoplast gene" EXACT [] > is_a: SO:0000088 ! implied link automatically realized ! mt_gene > intersection_of: SO:0000088 ! mt_gene > intersection_of: has_origin SO:0000741 ! kinetoplast > > (the "implied link automatically realized" metadata will make its way into the owl as an axiom annotation at a later date) > > Having these inferred links asserted is very useful to most users of the SO who don't want to have to use a complete reasoner to traverse the hierarchy > > Some very out of date documentation here: > http://wiki.geneontology.org/index.php/SO:Composite_Terms > > On May 3, 2011, at 9:45 AM, Mikel Egaña Aranguren wrote: > >> Hi; >> >> I have been recently exploring the OWL version of SO and I have >> encountered the following pattern several times: >> >> B equivalentTo A and (p some C) >> B subClassOf A >> >> It seems to me that the second axiom is redundant, since it is already >> entailed by the first one, but I'm sure there is a good reason for it to >> be there, can anyone help me? Thanks >> >> An example: >> >> SO_0001032 equivalentTo SO_0000737 and (has_quality some SO_0000352) >> SO_0001032 subClassOf SO_0000737 >> >> <owl:Class rdf:about="&ns1;SO_0001032"> >> <ns1:IAO_0000118 xml:lang="en">mitochondrial DNA</ns1:IAO_0000118> >> <rdfs:label xml:lang="en">mitochondrial_DNA</rdfs:label> >> <rdfs:subClassOf rdf:resource="&ns1;SO_0000737"/> >> <owl:equivalentClass> >> <owl:Class> >> <owl:intersectionOf rdf:parseType="Collection"> >> <rdf:Description rdf:about="&ns1;SO_0000737"/> >> <owl:Restriction> >> <owl:onProperty rdf:resource="&ns1;has_quality"/> >> <owl:someValuesFrom rdf:resource="&ns1;SO_0000352"/> >> </owl:Restriction> >> </owl:intersectionOf> >> </owl:Class> >> </owl:equivalentClass> >> </owl:Class> >> >> >> >> Regards >> >> -- >> Mikel Egaña Aranguren, PhD >> http://mikeleganaaranguren.com >> >> Marie Curie post-doc at Ontology Engineering Group, UPM >> http://www.oeg-upm.net/ >> >> >> ------------------------------------------------------------------------------ >> WhatsUp Gold - Download Free Network Management Software >> The most intuitive, comprehensive, and cost-effective network >> management toolset available today. Delivers lowest initial >> acquisition cost and overall TCO of any competing solution. >> http://p.sf.net/sfu/whatsupgold-sd >> _______________________________________________ >> SOng-devel mailing list >> SOn...@li... >> https://lists.sourceforge.net/lists/listinfo/song-devel > ------------------------------------------------------------------------------ > WhatsUp Gold - Download Free Network Management Software > The most intuitive, comprehensive, and cost-effective network > management toolset available today. Delivers lowest initial > acquisition cost and overall TCO of any competing solution. > http://p.sf.net/sfu/whatsupgold-sd > _______________________________________________ > SOng-devel mailing list > SOn...@li... > https://lists.sourceforge.net/lists/listinfo/song-devel -- Mikel Egaña Aranguren, PhD http://mikeleganaaranguren.com Marie Curie post-doc at Ontology Engineering Group, UPM http://www.oeg-upm.net/ |