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: Some birds are pollinators that co-evolved with plants. 
Sentence2: insects pollinate plants.
answer:
plants


question:
Sentence1: when a river floods , that river deposits soil in flood plains. 
Sentence2: when a river floods, it deposits soil in generally marshy areas.
answer:
deposits


question:
Sentence1: wind is used for producing electricity. 
Sentence2: Differential heating of air can be harnessed for electricity production.
answer:

electricity