South Africa's former PM Nelson Mandela back in hospital

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?
South Africans mark ailing Mandela's 95th birthday

Syrian Arab Republic (the): More than 70 killed in Syria ahead of Annan return

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?
Syrian Arab Republic (the): Syrian Arab Republic: Syrian Refugees (as of 28 June 2012)

A man and a woman shake hands.

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?
An old woman is shaking hand with a man.

A herd of caribou are crossing a road.

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 herd of deer are crossing the street.