Generate an overlapping word between the given two sentences. When you find the overlapping words, they don't have to match exactly, e.g., "survival" and "survive" are valid overlapping words. Little words like "the" or "of" don't count! You must generate significant words which are not the stop words.

Q: Sentence1: Angiosperm sporophyte is dominant. 
Sentence2: Flowers form on angiosperms.

A: Angiosperm
****
Q: Sentence1: Some birds are pollinators that co-evolved with plants. 
Sentence2: insects pollinate plants.

A: plants
****
Q: Sentence1: Absorption of nutrients occurs mainly in the small intestine. 
Sentence2: The small intestine is the main place where food absorption occurs.

A:
intestine
****