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: when a body of water receives more water than it can hold , a flood occurs. 
Sentence2: Floods are deadly, floods are devastating.
[EX A]: flood

[EX Q]: Sentence1: Information on DNA is organized into genes. 
Sentence2: DNA codes for proteins.
[EX A]: DNA

[EX Q]: Sentence1: Flagella help prokaryotes move. 
Sentence2: Most prokaryotes are unicellular.
[EX A]:
prokaryotes