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.
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Question: Sentence1: if an organism becomes too hot then that organism may die. 
Sentence2: if an organism overheats then that organism may die.

Answer: die


Question: Sentence1: Information on DNA is organized into genes. 
Sentence2: DNA codes for proteins.

Answer: DNA


Question: Sentence1: chlorophyll is used for absorbing light energy by plants. 
Sentence2: Chlorophyll is a complex molecule.

Answer:
chlorophyll