PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
8660611-4	1996	GSL containing silica gel was scraped off and extracted with chloroform:methanol:water (30:60:8, by vol).	Chloroform	61-71	cathepsin A	Homo sapiens	0-3	
8660611-6	1996	Finally, a stepwise chloroform:methanol gradient chromatography on a small silica gel K60 column was employed to remove non-GSL impurities.	Chloroform	20-30	cathepsin A	Homo sapiens	124-127