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: Genetics is the study of inheritance. 
Sentence2: Pedigrees are useful tools for studying genetics.
answer:
Genetics


question:
Sentence1: Nonmetal elements are far fewer in number. 
Sentence2: There are 17 nonmetals on the periodic table.
answer:
Nonmetal


question:
Sentence1: Breathing affects the flow of hormones through the endocrine system. 
Sentence2: Breathing allows hormones to travel throughout the body in the bloodstream.
answer:

Breathing