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: weathering means breaking down rocks from larger whole into smaller pieces by weather. 
Sentence2: Trash collectors work in all types of weather, including rain and snow.

SOLUTION: weather

PROBLEM: Sentence1: Hermit crabs use the shells of dead snails for homes. 
Sentence2: Hermits crabs use dead snails shells as their place to live.

SOLUTION: Hermit

PROBLEM: Sentence1: Hair is used to insulate and keep the body warm in a large variety of climates. 
Sentence2: Hair helps to keep the body warm and protect it in a variety of climates.

SOLUTION:
body