Question:
"We don't know everything [but] what we know suggests that we should take what they're saying seriously," he said.

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?

Answer:
"Certainly what we know suggests that we should take what they're saying very seriously," he added.

Question:
German factory orders rebound in January

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?

Answer:
U.S factory orders down 0.7 pct in January

Question:
Reopen Madeleine case, police urge

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?

Answer:
Is Madeleine McCann Still Alive?