How to use "obtain" in a sentence

Fantine felt desperate; she did not know how to obtain such a large sum of money

Because so much material in the hotel's files was extremely confidential information about high rollers, and because the Pyramid's list of favored customers would be of enormous value to competitors, only approved people could obtain this data, and a record was kept of everyone who accessed it

Where did she obtain this evidence?

Yet the weak illumination that the lamps provided was apparently sufficient for the security cameras to obtain clear images of the entire plateau, because cameras were attached to every lamppost, and not an inch of the area escaped their unblinking attention.

But we were never able to obtain any information from my sister-in-law