PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
941178-4	1976	The fifth substance, 17beta-hydroxy-3beta-methyl-5alpha-androstan-2-one, can be derived from initial hydroxylation of the cyclopropane ring at C-2 followed by ring opening.	cyclopropane	122-134	complement C2	Oryctolagus cuniculus	143-146