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: Bees feed on nectar and pollen. 
Sentence2: Plant reproduction often requires bees and nectar.
answer:
Bees


question:
Sentence1: freezing means changing from a liquid into a solid by reducing heat energy. 
Sentence2: Water freezes into ice when cooled.
answer:
freezing


question:
Sentence1: magnetism can cause objects to repel each other. 
Sentence2: Michael Faraday discovered that a magnetic field can generate an electric current.
answer:

magnetism