Premise: I heard something about Wales Holyhead, I think.

Hypothesis: It's possible that I heard something about Wales Holyhead.
Answer: yes

Premise: The newsweeklies' Gen Y obsession continues with a cover story on Tweens, the 27 million 8-to-14-year-olds in the United States.

Hypothesis: Tweens are people aged 8 to 14 years old in the United States.
Answer: yes

Premise: The technology of satellite TV--one 18-inch dish on the deck of my apartment receiving 207 channels from something flying in space thousands of miles away--is wonderful.

Hypothesis: The technology behind satellite TV is wonderful.
Answer: yes

Premise: By the time he reached the bend of the staircase, he had heard the man below disappear into a back room.

Hypothesis: The man vanished into a room in the back.
Answer: yes