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: Sweat glands produce more sweat. 
Sentence2: When the body is hot, something coming from a gland is produced to cool the body.
[EX A]: glands

[EX Q]: Sentence1: Echinoderms lack respiratory and excretory systems. 
Sentence2: echinoids lack a respiratory system.
[EX A]: respiratory

[EX Q]: Sentence1: Creature Comforts A habitat is an animal's home. 
Sentence2: Destruction of an animal's home causes animals to move to find shelter in another home.
[EX A]:
animal's