Definition: 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.
Input: Sentence1: Circadian rhythms People and animals are usually adapted for a daily cycle of light and dark. 
Sentence2: Plants detect light and dark because of their circadian rhythm.

Circadian