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: Most bryophytes are small. 
Sentence2: Most in the same group as mosses are small.
[EX A]: small

[EX Q]: Sentence1: electric devices require electrical energy to function. 
Sentence2: Lie detectors are electrical or mechanical devices.
[EX A]: devices

[EX Q]: Sentence1: Helpful Generalizations Vapors and gases are molecules. 
Sentence2: vapors from burning coal and oil dissolving in water in the atmosphere causes acid rain.
[EX A]:
Vapors