Question:
Four Palestinians killed in IAF strike

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?

Answer:
2 Palestinians killed in Israeli airstrikes

Question:
Obama: Patriot missile batteries, troops to stay in Jordan near Syrian border

What is a sentence that would be (on a scale from 0 to 5) a 3 out of 5 in terms of textual similarity to the above sentence?

Answer:
NATO: Patriot missile battery operational on Syrian border

Question:
Lance Armstrong confesses to doping in Oprah interview

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:
Lance Armstrong confesses all to Oprah