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: hunting requires seeing prey. 
Sentence2: hunting requires seeing an animal.
[A]: hunting


[Q]: Sentence1: Polyps usually reproduce asexually. 
Sentence2: Polyps usually reproduce several different ways.
[A]: Polyps


[Q]: Sentence1: Molecules of tRNA bring amino acids to the ribosome in the correct sequence. 
Sentence2: molecules of tRNA bring proteins to the ribosome.
[A]:
Molecules