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: being burried under soil and mud changes peat into coal through extreme heat and pressure in a swamp over a long period of time. 
Sentence2: Marble is used for sculptures, and coal is used for fuel and energy like light.

A: coal
****
Q: Sentence1: With a spatula, fold in flour mixture. 
Sentence2: a sifter is used for separating flour.

A: flour
****
Q: Sentence1: a seismometer is used to measure the strength or magnitude of an earthquake. 
Sentence2: a seismometer can predict destruction.

A:
seismometer
****