Question:
S1: The truck carried the equivalent of 1.6 tons of TNT , emergency ministry official Ruslan Khadzhiyev said .
S2: Another Chechen emergency ministry official , Ruslan Khadzhiyev , said the truck was carrying the equivalent of 1.6 tons of TNT .
Are S1 and S2 the same?
Answer:
yes

Question:
S1: Preliminary reports were that the men were not seen together at the airport , sources said .
S2: The men had Pakistani passports and reportedly were seen together at the airport earlier in the evening , law enforcement sources said .
Are S1 and S2 the same?
Answer:
no

Question:
S1: The civilian unemployment rate improved marginally last month - sliding down to 6.1 percent - as companies slashed payrolls by 93,000 .
S2: The civilian unemployment rate improved marginally last month _ sliding down to 6.1 percent _ as companies slashed payrolls by 93,000 amid continuing mixed signals about the nation 's economic health .
Are S1 and S2 the same?
Answer:
no

Question:
S1: Those in their twenties who ejaculated more than five times a week were one-third less likely to develop aggressive prostate cancer later in life , they say .
S2: Those who ejaculated more than five times a week were a third less likely to develop serious prostate cancer in later life .
Are S1 and S2 the same?
Answer:
yes