Task: Translation
Input (English): The extension of the payroll tax cut, which would prevent approximately 160 million Americans from seeing a tax increase in 2012, had already been passed by the Senate last weekend.
Output (Japanese): 2012年におおよそ1億6千万のアメリカ人の増税を防いだ給与税減税の延長は、すでに先週末、上院を通過した。