Report of two explosions at finish line of Boston Marathon

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?
Witnesses hear 'loud booms' at Boston Marathon

Three children are playing soccer in the sand.

What is a sentence that would be (on a scale from 0 to 5) a 0 out of 5 in terms of textual similarity to the above sentence?
Some children are raising their hands and clapping.

A man stands on a platform in front of a silver train.

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?
A man stands in front of a train.

Indian stocks open higher

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?
Hong Kong stocks end higher