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: Skin color is another polygenic trait. 
Sentence2: Skin color is influenced by multiple genes.

A: Skin
****
Q: Sentence1: An organism can gain energy by assimilation or absorption of food. 
Sentence2: Organisms require food for growth.

A: food
****
Q: Sentence1: Most arthropods are insects. 
Sentence2: Arthropods are eaten seasonally.

A:
arthropods
****