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: Mammalian predators include the coyote and bobcat. 
Sentence2: a coyote's teeth is important for digestion.

A: coyote
****
Q: Sentence1: Most pituitary hormones control other endocrine glands. 
Sentence2: Hormones tell the ovaries to produce eggs.

A: hormones
****
Q: Sentence1: Slime molds are fungus-like protists commonly found on rotting logs and compost. 
Sentence2: An obvious sign of mature logs is the appearance of mushrooms.

A:
logs
****