instruction:
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.
question:
Sentence1: Most copepods feed on phytoplankton. 
Sentence2: most copepods feed on bacteria and algae that use sunlight to make food.
answer:
copepods


question:
Sentence1: Blood type is important for medical reasons. 
Sentence2: Type O is important for medical reasons.
answer:
important


question:
Sentence1: Naturally Organic foods are grown without the aid of unsafe and polluting chemicals. 
Sentence2: Eating naturally organic food can prevent a negative impact on an organism's survival.
answer:

Naturally