Ukraine President Calls Talks To End Protests

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?
Ukraine: Three Killed In Parliament Protests

A lion is playing with two men.

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?
A lion is playing with people.

No agreement at Iran nuclear talks

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No argument with Jakarta on boats: Abbott

russian investigators stated that the british company was a cia cover.

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?
investigators claim the british company was a cia cover.