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: Endospores are commonly found in soil and water. 
Sentence2: Dirt is really misplaced soil.
[A]: soil


[Q]: Sentence1: gills are used for breathing water by aquatic animals. 
Sentence2: gills are used for breathing water by sharks.
[A]: are


[Q]: Sentence1: Insects are required for the transfer of pollen. 
Sentence2: plant reproduction requires insects.
[A]:
Insects