instruction:
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.
question:
Sentence1: Dromaeosaurs are part of the theropod group of dinosaurs. 
Sentence2: Birds evolved from a group of bipedal dinosaurs that included Dromaeosaurs.
answer:
Dromaeosaurs


question:
Sentence1: Proper digestion is vital for nutrient absorption. 
Sentence2: Digestion is important for an animal's survival.
answer:
digestion


question:
Sentence1: When the stomach is removed, it is possible for bile to reflux into the mouth. 
Sentence2: reflux into the mouth reduces the acidity of food entering from the highly acidic stomach.
answer:

into