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: Interest in fossils is worldwide. 
Sentence2: paleontologists study something with worldwide interest.

SOLUTION: Interest

PROBLEM: Sentence1: Most mammals have hair, or fur, covering their body. 
Sentence2: Most mammals have a body covering for keeping warm.

SOLUTION: body

PROBLEM: Sentence1: Wetlands are extremely important biomes. 
Sentence2: The habitat of spoonbills are extremely important biomes.

SOLUTION:
biomes