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: friction causes the temperature of an object to increase. 
Sentence2: internal combustion engines get hot.
answer:
temperature


question:
Sentence1: hiding can be used for avoiding predators. 
Sentence2: Camouflage is used for avoiding predators.
answer:
avoiding


question:
Sentence1: Earth is one of the planets orbiting a star called the Sun. 
Sentence2: Nuclear reactions provide the Earth with light.
answer:

Earth