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.
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Question: Sentence1: Some viruses live in a dormant state inside the body. 
Sentence2: a virus can live in the brain.

Answer: viruses


Question: Sentence1: Sponges are filter feeders. 
Sentence2: Hawksbills feed primarily on filter feeders.

Answer: feeders


Question: Sentence1: Clearing of land can lead to erosion of soil into the river. 
Sentence2: clearing land can make a river wider.

Answer:
Clearing