TASK DEFINITION: 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.
PROBLEM: Sentence1: Climate Forests stabilize climate. 
Sentence2: forests stabilize what is generally described in terms of temperature and moisture.

SOLUTION: Forests

PROBLEM: Sentence1: Blood type is important for medical reasons. 
Sentence2: Type O is important for medical reasons.

SOLUTION: important

PROBLEM: Sentence1: a thermometer is used to measure temperature. 
Sentence2: a thermometer is used to measure heat.

SOLUTION:
a