PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
9422719-1	1998	We have been interested in understanding how the estrogen receptor (ER) binds estrogens and discriminates between different classes of steroids with closely related structures.	Steroids	135-143	estrogen receptor 1	Homo sapiens	49-66	
9422719-1	1998	We have been interested in understanding how the estrogen receptor (ER) binds estrogens and discriminates between different classes of steroids with closely related structures.	Steroids	135-143	estrogen receptor 1	Homo sapiens	68-70