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: a circle graph can be used to display percents. 
Sentence2: pie charts are circle graphs.
answer:
circle


question:
Sentence1: Some viruses live in a dormant state inside the body. 
Sentence2: a virus can live in the brain.
answer:
viruses


question:
Sentence1: Fungi lack chlorophyll, so they cannot make food by photosynthesis as plants can. 
Sentence2: yeast lack clorophyll.
answer:

chlorophyll


