Wall Street is set to tow in line with the lackluster trend in the previous session, as the major U.S. index futures point to a negative open on Friday. The guarded mood reflects nervousness concerning the course of monetary policy. Traders are likely to focus their attention on the industrial production, consumer sentiment and producer price inflation data due for the day along with a host of global catalysts. For the first day in four, the Chinese central bank set the reference rate for the yuan higher. The dollar is mixed and commodities are also seeing subdued trading. The Greek Parliament has approved the bailout agreement between Greece and its creditors even as there was dissent among ruling party members. Meanwhile, second quarter GDP data from the eurozone came in softer than expected.