instruction:
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.
question:
Sentence1: All cells share some of the same structures and basic functions. 
Sentence2: Inside the cell is a structure called the nucleus.
answer:
cells


question:
Sentence1: a fire requires oxygen to burn. 
Sentence2: A fire requires something with exactly eight protons to burn.
answer:
burn


question:
Sentence1: faulting of rock in Earth 's crust causes earthquakes. 
Sentence2: Earthquake tremors also frequently shatter window glass miles from the epicenter.
answer:

earthquakes


