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: Most species go through larval stages after hatching. 
Sentence2: Most species go through stages of feeding and growth after hatching.
A: 
hatching