<urn:biopax:UnificationXref:REACTOME+DATABASE+ID_2521893> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.biopax.org/release/biopax-level3.owl#UnificationXref> .
<urn:biopax:UnificationXref:REACTOME+DATABASE+ID_2521893> <http://www.biopax.org/release/biopax-level3.owl#comment> "Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=2521893"^^<http://www.w3.org/2001/XMLSchema#string> .
<urn:biopax:UnificationXref:REACTOME+DATABASE+ID_2521893> <http://www.biopax.org/release/biopax-level3.owl#db> "Reactome Database ID"^^<http://www.w3.org/2001/XMLSchema#string> .
<urn:biopax:UnificationXref:REACTOME+DATABASE+ID_2521893> <http://www.biopax.org/release/biopax-level3.owl#id> "2521893"^^<http://www.w3.org/2001/XMLSchema#string> .