Do the following sentences say the same thing?
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Syria rebels leave besieged Homs
Syrian rebels retreat from besieged Homs district

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Do the following sentences say the same thing?
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The researchers found only empty cavities and scar tissue where the tumors had been.
No tumors were detected; rather, empty cavities and scar tissue were found in their place.

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Do the following sentences say the same thing?
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Australia leader ousted in snap leadership vote
Australian PM Gillard ousted in leadership vote

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lugar and nunn are senators.
lugar and nunn awarded the prime minister a medal.
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