White diamond breaks record in Hong Kong auction
White diamond fetches record $34m at HK auction

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer: 4

At least 45 killed in Spain train crash
At least 13 killed in triple car bombings in Iraq's Diyala

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer: 1

U.N. rights chief presses Egypt on Mursi detention
UN Rights Chief Presses Egypt on Morsi Detention

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer: 5

Doctors have speculated that the body's own estrogen protects against cell damage and improves blood flow.
Their belief was based on speculation that estrogen prevents cell damage and improves blood flow.

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer:
4