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: infection can cause bodily tissues to swell. 
Sentence2: Bacteria can cause bodily tissues to swell.
bodily

Sentence1: hunting requires seeing prey. 
Sentence2: hunting requires seeing an animal.
hunting

Sentence1: Ribosomes consist of ribosomal RNA and proteins. 
Sentence2: ribosomes have RNA.

RNA