instruction:
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.
question:
Sentence1: cell division often causes growth. 
Sentence2: Cell division leads to reproduction.
answer:
cell


question:
Sentence1: Annelids have the amazing capacity to regrow segments that break off. 
Sentence2: Earthworms can regrow segments that break off.
answer:
break


question:
Sentence1: gases released during the use of fossil fuels causes global warming. 
Sentence2: Global warming is linked to the combustion of oil, gas and coal.
answer:

use