Killer may have filmed France school shooting

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?
Gunman may have filmed school massacre

Belgium King Albert II 'to abdicate'

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Belgian King Albert II to step down in favor of son

The trial, which could last until early 2004, is expected to hear the first of 125 witnesses Friday.

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?
The trial, featuring 125 witnesses, could continue until the start of 2004.

Afghan District Governor Defects To Taliban

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?
Afghans flock to colleges, even as Taliban loom