SPARQL | HTML5 RDFa and Microdata document
http://rdf.wikipathways.org/Pathway/WP4157_r128244/Comment/7ce9a85f49c2c598a1cfa976621179a6
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/WP4157_r128244/DataNode/f740b
http://vocabularies.wikipathways.org/gpml#commentText
aka 2-oxo-4-hydroxybutyric acid aka 4-hydroxy-2-oxobutanoic acid
http://rdf.wikipathways.org/Pathway/WP4157_r128244/DataNode/f740b
http://vocabularies.wikipathways.org/gpml#hasComment
http://rdf.wikipathways.org/Pathway/WP4157_r128244/Comment/7ce9a85f49c2c598a1cfa976621179a6