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: Polyps usually reproduce asexually. 
Sentence2: Polyps usually reproduce several different ways.
answer:
Polyps


question:
Sentence1: a plant requires sunlight to grow. 
Sentence2: Grass needs air and sunlight.
answer:
sunlight


question:
Sentence1: natural magnetism is used for pointing north by a compass. 
Sentence2: Magnets are surrounded by a magnetic field.
answer:

magnetism