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.

Q: Sentence1: Roundworms make up the phylum Nematoda. 
Sentence2: Also, nematoda and rotifera are important groups contributing to soils.

A: Nematoda
****
Q: Sentence1: a light bulb is used for seeing in the dark. 
Sentence2: light is required for seeing.

A: seeing
****
Q: Sentence1: Ribosomes are larger and distinct from the ribosomes found in prokaryotes. 
Sentence2: prokaryotes can make proteins.

A:
prokaryotes
****