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: Secondary accidents are a major problem under driving conditions of reduced visibility. 
Sentence2: Bad weather increases the risk of car accidents.
[EX A]: Secondary

[EX Q]: Sentence1: Most bryophytes are small. 
Sentence2: Most in the same group as mosses are small.
[EX A]: small

[EX Q]: Sentence1: Magnitude a measure of earthquake size. 
Sentence2: A seismograph measures the magnitude of earthquakes.
[EX A]:
Magnitude