What is a scentance that has overpower in it?

The term 'overpower' has a couple of distinct uses: 1: overcome by superior force; 2: overcome, as with emotions or perceptual stimuli

Allmost nothing can overpower a big crocodile. Elephants, Rhino and hippo are the only animals that could do really do it.

it is called a clause

you use their when it is talking about something that belongs to somebody else e.g look at their house over there.

Phenotype, I don't want him as my secretary.