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: Carbon cycles quickly between organisms and the atmosphere. 
Sentence2: the atmosphere is essential to all living organisms.

A: organisms
****
Q: Sentence1: For example, in the sentence The rain destroyed the crops , The rain is the subject. 
Sentence2: If weather is stormy then there is a chance of destroyed crops.

A: crops
****
Q: Sentence1: a planet rotating causes cycles of day and night on that planet. 
Sentence2: Our bodies and senses adjust to the cycle of day and night so that we may work in the day and sleep at night.

A:
cycles
****