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: the force of water against the seed coat causes a root to emerge from a seed. 
Sentence2: Germination depends on the seed coat.
answer:
coat


question:
Sentence1: Kinetic energy is energy in motion. 
Sentence2: An animal requires kinetic to move.
answer:

Kinetic