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.

[EX Q]: Sentence1: Organisms cluster around hydrothermal vents in the ocean floor. 
Sentence2: vents on the ocean floor are powered by heat.
[EX A]: vents

[EX Q]: Sentence1: Climate Forests stabilize climate. 
Sentence2: forests stabilize what is generally described in terms of temperature and moisture.
[EX A]: Forests

[EX Q]: Sentence1: some animals' fur grows thicker for staying warm in the winter. 
Sentence2: mammals use fur to stay warm.
[EX A]:
warm