SPARQL | HTML5 RDFa and Microdata document
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http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://vocabularies.wikipathways.org/gpml#Comment
http://purl.org/dc/terms/isPartOf
http://rdf.wikipathways.org/Pathway/WP4900_r134667/DataNode/bf329
http://vocabularies.wikipathways.org/gpml#commentText
P2RY9
http://rdf.wikipathways.org/Pathway/WP4900_r134667/DataNode/bf329
http://vocabularies.wikipathways.org/gpml#hasComment
http://rdf.wikipathways.org/Pathway/WP4900_r134667/Comment/3ef34e86ca1099237b231881519e0079