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.

Sentence1: Bryophytes occupy niches in moist habitats. 
Sentence2: Animals and plants that live in the same place and share resources form a community biome niche .
niches

Sentence1: a battery converts chemical energy into electrical energy. 
Sentence2: Battery electricity comes conversion.
battery

Sentence1: skin is used for protecting the body from harmful substances. 
Sentence2: organs protect the body from harmful substances.

body