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: Interest in fossils is worldwide. 
Sentence2: paleontologists study something with worldwide interest.
[EX A]: Interest

[EX Q]: Sentence1: Autumn brings the changing of the seasons. 
Sentence2: Earth 's tilt on its rotating axis causes autumn.
[EX A]: Autumn

[EX Q]: Sentence1: Many plants respond to the days growing shorter in the fall by going dormant. 
Sentence2: Many plants are in a dormant state in winter.
[EX A]:
plants