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: Translation reads the genetic code in mRNA and makes a protein. 
Sentence2: Nucleotide sequences are read in mRNA and a protein is made.
[EX A]: mRNA

[EX Q]: Sentence1: Most mammals have hair, or fur, covering their body. 
Sentence2: Most mammals have a body covering for keeping warm.
[EX A]: body

[EX Q]: Sentence1: a flashlight requires a source of electricity to produce light. 
Sentence2: a battery is a source of electricity able to produce light.
[EX A]:
electricity