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: soil is formed by weathering. 
Sentence2: Something described as loamy is formed by weathering.

A: formed
****
Q: Sentence1: friction is used for stopping a vehicle by brakes. 
Sentence2: friction is used for stopping a car by brakes.

A: brakes
****
Q: Sentence1: Rather, such complex characteristics are polygenic, i.e., they are influenced by multiple genes. 
Sentence2: Skin color is influenced by multiple genes.

A:
genes
****