It seems likely that U.S. and foreign mailers would prepare AO mail so that it would qualify for lower domestic rates applicable to printed matter and/or lower priority delivery.
The U.S. and foreign mailers would likely prepare AO mail.
U.S and foreign mailers have no reason to prepare AO mail.
A man plays a piano while children watch.
The man is outside of the house.
Three people are in a canoe going over a waterfall.
I don't let them watch TV around dinnertime.
The two woman and two others are playing a board game.
People are on a sidewalk.