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: a circle graph can be used to display percents. 
Sentence2: pie charts are circle graphs.
[EX A]: circle

[EX Q]: Sentence1: Runoff water is wasted water. 
Sentence2: Streams may start with wasted water.
[EX A]: wasted

[EX Q]: Sentence1: Digestion is the process of breaking down food into components the body can absorb. 
Sentence2: Enzymes break down food into components the body can absorb.
[EX A]:
absorb