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: Mollusks live in most terrestrial, freshwater, and marine habitats. 
Sentence2: Clams live in freshwater habitats.
answer:
freshwater


question:
Sentence1: zinc has a positive impact on the healing of wounds. 
Sentence2: oysters have a positive impact on the healing of wounds.
answer:
has


question:
Sentence1: hearing is used for sensing sound by animals. 
Sentence2: Coyotes use their acute hearing and sense of smell to detect prey and avoid danger.
answer:

sensing