Thanks Amos. I see the expression "is comprised of" quite a bit, and I never know if it is used correctly or not, in terms of mixing up the parts and the whole. Your message makes it clear that the expression itself is wrong.

Bill, your reference to there -- their -- they're reminds me of a couple of things. One is a favorite saying of mine:

He didn't have the mettle to meddle with my metal medal.

The other is a usage that actually arose naturally in a conversation once upon a time. Years ago there were to be a pair of concerts at the Washington Monument grounds (Washington DC, USA) on a Saturday and Sunday. I knew that the Saturday concert was scheduled to run from 2:00 PM to 2:00 AM, and a friend wondered what the hours for the Sunday concert were. I looked it up, and then informed him that the Sunday concert was scheduled to run from two to two too.

Really happened!

Don