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.

[EX Q]: Sentence1: Heterotrophs are living things that cannot make their own food. 
Sentence2: food contains organic molecules.
[EX A]: food

[EX Q]: Sentence1: dew is formed when water vapor condenses over night. 
Sentence2: dew is formed when cooling  over night.
[EX A]: dew

[EX Q]: Sentence1: Food consists of organic molecules that store energy in their chemical bonds. 
Sentence2: Beef jerky is the perfect food.
[EX A]:
Food