PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
20880055-14	2011	By contrast, COX-2 contributes substantially to the biosynthesis of PGE(2) .	Prostaglandins E	68-71	mitochondrially encoded cytochrome c oxidase II	Homo sapiens	13-18