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: Dromaeosaurs are part of the theropod group of dinosaurs. 
Sentence2: Birds evolved from a group of bipedal dinosaurs that included Dromaeosaurs.
[EX A]: Dromaeosaurs

[EX Q]: Sentence1: Microbes are also called bacteria or microorganisms. 
Sentence2: Disease-causing bacteria have a negative impact on the body.
[EX A]: bacteria

[EX Q]: Sentence1: A number of buildings in Istanbul also were damaged in the earthquake. 
Sentence2: when an earthquake causes the ground to shake, this shaking can damage buildings.
[EX A]:
buildings