hill is the head american negotiator on north korea's nuclear weapons program.

What is a sentence that would be (on a scale from 0 to 5) a 1 out of 5 in terms of textual similarity to the above sentence?
united states officials do not know how far north korea's nuclear weapons program has progressed.

He said police had identified the bodies of seven of the 14 bombers who launched five almost simultaneous raids Friday night.

What is a sentence that would be (on a scale from 0 to 5) a 4 out of 5 in terms of textual similarity to the above sentence?
Mr Sahel said police had identified the bodies of seven of the 14-strong cell believed to have carried out the five almost simultaneous attacks on Saturday.

A man is dancing on the ceiling of a room.

What is a sentence that would be (on a scale from 0 to 5) a 5 out of 5 in terms of textual similarity to the above sentence?
A man is dancing on the ceiling.

"It's not zero," said David Ropeik, director of risk communication at the Harvard Center for Risk Analysis.

What is a sentence that would be (on a scale from 0 to 5) a 2 out of 5 in terms of textual similarity to the above sentence?
Is it in the food supply?" says David Ropeik, director of risk communication at the Harvard Center for Risk Analysis.