Given a text, write a compressed version of it in a single sentence.

[EX Q]: If you haven't already enrolled, sign up for this plan that saves you money on your AT&T Universal Card calls. You get the low rate of 25 cents a minute anytime, anywhere in the U.S. on all your AT&T Universal Card calls when you make the call yourself by dialing 1 800 CALL ATT.
[EX A]: If you have yet to be enrolled, sign up for this plan that saves you money on your AT&t Universal Card calls. You get a rate of 25 cents a minute anytime in the U.S.

[EX Q]: Politically, the 1990s have been relatively quite times for the islands, although the divorce of Greek prime minister Andreas Papandreou and his subsequent marriage to a much younger woman caused consternation within conservative Greek society.
[EX A]: the divorce of Greek prime minister Andreas Papandreou and his subsequent marriage to a much younger woman caused consternation within conservative Greek society.

[EX Q]: The total was approximately 2800, but that is probably only a vague estimate: he undoubtedly missed some; some have sprung up since his time ( modern Hebrew, for instance ); and some have vanished.
[EX A]:
The total was 2800 but this is a vague estimate. Undoubtedly some were missed and have came up since his time and some have vanished.