Instruct: Given a premise, retrieve a hypothesis that is entailed by the premise.
Query: The 2007 Porsche Tennis Grand Prix was a tennis tournament played on indoor hard courts. It was the 30th year of Porsche Tennis Grand Prix, and was part of the Tier II Series of the 2007 WTA Tour. It took place at the Porsche Arena in Stuttgart, Germany, from October 1 through October 7, 2007
The 2007 Porsche Tennis Grand Prix was part of the Tier II Series of the 2007 WTA Tour
The 1997 Porsche Tennis Grand Prix took place in 1996
The 2008 Porsche Tennis Grand Prix took place at the Porsche Arena in Stuttgart, Germany, from October 2 through October 10, 2008.

The 2008 Porsche Tennis Grand Prix took place at the Porsche Arena in Stuttgart, Germany, from October 2 through October 8, 2008.
The 1997 Porsche Tennis Grand Prix took place in 1998
The 2008 Porsche Tennis Grand Prix took place at the Porsche Arena in Stuttgart, Germany, from October 1 through October 8, 2008.
The 2008 Porsche Tennis Grand Prix took place at the Porsche Arena in Stuttgart, Germany, from October 1 through October 9, 2008.
The 1997 Porsche Tennis Grand Prix took place in 1967
The 2008 Porsche Tennis Grand Prix took place at the Porsche Arena in Stuttgart, Germany, from October 2 through October 9, 2008.
The 1997 Porsche Tennis Grand Prix took place in 1999
The 1997 Porsche Tennis Grand Prix took place in 1995
The 1997 Porsche Tennis Grand Prix took place in 1934
The 1997 Porsche Tennis Grand Prix took place in 1992
The 1997 Porsche Tennis Grand Prix took place in 1994
The 2008 Porsche Tennis Grand Prix took place at the Porsche Arena in Stuttgart, Germany, from September 1 through September 7, 2008.
The Porsche Tennis Grand Prix tennis tournament was first played in 2001.
In 2017 a professional tennis tournament was played on soft courts.
WTA of 1997 played on hard wood surfaces.
The prize for the 1997 WTA Tour was a Porsche
The tennis tournaments at the J&T Prague Open were played on cement tennis courts.
The tournament is no longer on grass courts.
The professional tennis players in the 2017 ATP Challenger were happy to play the tournament on hard courts. 
The 2007 Porsche Tennis Grand Prix was played on grass courts. 
The 2009 Porsche Tennis Grand Prix took place at the Porsche Arena in Stuttgart, Germany, from October 1 through October 7, 2009.
The 2007 Porsche Tennis Grand Prix was a table tennis tournament.