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.

Sentence1: Lions live in social groups called prides. 
Sentence2: Chimpanzees live in social groups called communities.
groups

Sentence1: if an object is kicked then force is exerted on that object. 
Sentence2: if an object is kicked then a measurement of newtons is exerted on that object.
exerted

Sentence1: Background Hot water vents form inside cracks in the ocean floor. 
Sentence2: Organisms cluster around hot water inside cracks in the ocean floor.

Hot