Question:
S1: The Nasdaq had a weekly gain of 17.27 , or 1.2 percent , closing at 1,520.15 on Friday .
S2: The tech-laced Nasdaq Composite .IXIC rallied 30.46 points , or 2.04 percent , to 1,520.15 .
Are S1 and S2 the same?
Answer:
no

Question:
S1: Chi-Chi 's has agreed to keep the restaurant closed until Jan. 2 - two months after it voluntarily closed following initial reports of the disease .
S2: Chi-Chi 's has agreed to keep the restaurant closed until Jan. 2 -- two months after it voluntarily closed when the disease was first reported .
Are S1 and S2 the same?
Answer:
yes

Question:
S1: Using bookmarks and back and forth buttons - we had about eighteen different things we had in mind for the browser , " he told an industry audience in London yesterday .
S2: Using bookmarks and back and forth buttons -- we had about eighteen different things we had in mind for the browser . "
Are S1 and S2 the same?
Answer:
yes

Question:
S1: Mr. Parsons has been director of the Stennis Center , which specializes in rocket engine research and testing , since August .
S2: Mr. Parsons has served as the director at the Stennis Space Center , which employs 4,600 people , since August .
Are S1 and S2 the same?
Answer:

no