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: Female monotremes lack a uterus and vagina. 
Sentence2: Babies are normally delivered from the uterus through the vagina.
answer:
uterus


question:
Sentence1: a circle graph can be used to display percents. 
Sentence2: pie charts are circle graphs.
answer:
circle


question:
Sentence1: Interphase is when replication of the DNA occurs. 
Sentence2: Interphase is when DNA is copied.
answer:

Interphase