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.
Q: Sentence1: if a living thing becomes too cold then that living thing will die. 
Sentence2: If a living thing gets hypothermia then that living thing will die.
A: 
die