Question:
S1: Still others cite the difficulty of assembling a group of subjects whose depression is of comparable severity , increasing the chances that the effectiveness of the medication will be diffused .
S2: Still others cite the difficulty of assembling a group of subjects whose depression is of comparable severity , a problem that complicates the task of properly measuring effectiveness .
Are S1 and S2 the same?
Answer:
yes

Question:
S1: Tony Blair has taken a hardline stance arguing nothing should be done to lessen the pressure on Mugabe at the gathering in the capital Abuja .
S2: The Prime Minister has taken a hardline stance arguing nothing should be done to lessen the pressure on Mugabe .
Are S1 and S2 the same?
Answer:
no

Question:
S1: He had performed outside Cuba on several occasions , including shows in the US last year and in Brazil , South Africa and several European countries .
S2: He had performed outside of Cuba on several occasions , including shows in the United States last year .
Are S1 and S2 the same?
Answer:
no

Question:
S1: A month ago , the Commerce Department estimated that GDP had grown at a 7.2 percent rate in the third quarter .
S2: A month ago , the Commerce Department said GDP grew at a 7.2 percent rate .
Are S1 and S2 the same?
Answer:
yes