Definition: 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.
Input: Sentence1: Phytoplankton are bacteria and algae that use sunlight to make food. 
Sentence2: most copepods feed on bacteria and algae that use sunlight to make food.

make