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: For example, in the sentence The rain destroyed the crops , The rain is the subject. 
Sentence2: If weather is stormy then there is a chance of destroyed crops.

A: crops
****
Q: Sentence1: Any antigen that causes an allergy is called an allergen. 
Sentence2: molds are antigens.

A: antigen
****
Q: Sentence1: Mammals have a layer of fat under the skin to help insulate the body. 
Sentence2: pugs have a layer of fat under the skin.

A:
fat
****