In the past, <e1>insulin</e1> was extracted from the <e2>pancreases</e2> of cows or pigs, then used to treat diabetics.
In the past, insulin
In the past, insulin was extracted from the pancreases of cows or pigs, then used to treat diabetics.
<triplet> insulin <subject> pancreases <object> Entity-Origin(e1,e2)