instruction:
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.
question:
Sentence1: Methane gas is a produced by rotting compost, trash, and human waste. 
Sentence2: Methane gas can be produced by Slime molds.
answer:
Methane


question:
Sentence1: Skin color is another polygenic trait. 
Sentence2: Skin color is influenced by multiple genes.
answer:
Skin


question:
Sentence1: Phytoplankton are bacteria and algae that use sunlight to make food. 
Sentence2: Sunlight beams down on the different types of algae.
answer:

algae