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: nectar is used for attracting pollinators by plants. 
Sentence2: butterflies pollinate plants.
answer:
plants


question:
Sentence1: soil is formed by weathering. 
Sentence2: Something described as loamy is formed by weathering.
answer:
formed


question:
Sentence1: Enveloped viruses make their own membranes. 
Sentence2: Some viruses make their own membranes.
answer:

make