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.

[EX Q]: Sentence1: Carbon cycles quickly between organisms and the atmosphere. 
Sentence2: the atmosphere is essential to all living organisms.
[EX A]: organisms

[EX Q]: Sentence1: If there is an increase in UV radiation, the risks go up for all types of skin cancer. 
Sentence2: Ozone depletion increases the risks for all types of skin cancer.
[EX A]: all

[EX Q]: Sentence1: Chapter 5 discusses polygenic inheritance and intelligence. 
Sentence2: intelligence is an inherited trait.
[EX A]:
intelligence