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: Arthropods Arthropods have jointed segmented exoskeletons. 
Sentence2: Insects have jointed segmented exoskeletons.
[EX A]: exoskeletons

[EX Q]: Sentence1: Hurricanes have wind speeds of at least 74 mph. 
Sentence2: anemometers can measure hurricanes.
[EX A]: Hurricanes

[EX Q]: Sentence1: telephones are used for communication by two people by transmitting sound. 
Sentence2: And the sound of their voice becomes important as well.
[EX A]:
sound