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: adding salt to a solid decreases the freezing point of that solid. 
Sentence2: Water density decreases with temperature and increases with salt content.
[EX A]: decreases

[EX Q]: Sentence1: If there is enough moisture in the clouds, rain is produced. 
Sentence2: Clouds lacking water reduces rainfall.
[EX A]: clouds

[EX Q]: Sentence1: Furry animals grow thicker coats to keep warm in the winter. 
Sentence2: Furry animals grow thicker coats which has a positive impact on their survival.
[EX A]:
Furry