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: Scyphozoans are the next group of Cnidarians, and they are the familiar jellyfish. 
Sentence2: Scyphozoans are aquatic organisms.
[EX A]: Scyphozoans

[EX Q]: Sentence1: All photos are digital images. 
Sentence2: satellites are used to take photos from space.
[EX A]: photos

[EX Q]: Sentence1: High-loft materials are the best insulators. 
Sentence2: High-loft materials are good for keeping warm.
[EX A]:
High-loft