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: Endospores are commonly found in soil and water. 
Sentence2: Dirt is really misplaced soil.

A: soil
****
Q: Sentence1: Methane gas is a produced by rotting compost, trash, and human waste. 
Sentence2: Methane gas can be produced by Slime molds.

A: Methane
****
Q: Sentence1: All sounds are vibrations. 
Sentence2: a radio converts electrical energy into sound.

A:
sounds
****