PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
8916454-3	1996	A further example involving a mixture of bovine serum albumin and bovine transferrin also showed the identification of previously unnoticed "contaminant" polymer.	Polymers	154-161	serotransferrin	Bos taurus	73-84