Question: How long is the race track of the 2007 Italian Motorcycle Grand Prix?

Context paragraphs:
2001 Rio de Janeiro motorcycle Grand Prix: The 2001 Rio de Janeiro motorcycle Grand Prix was the sixteenth and latest round of the 2001 Grand Prix motorcycle racing season.  It took place on the weekend of 1–3 November 2001 at the Autódromo Internacional Nelson Piquet.  It was also the final 500cc race in Grand Prix motorcycle racing history.  This also marked the final Grand Prix win in the career of Daijiro Kato before his death caused by a crash in the 2003 Japanese motorcycle Grand Prix race.

2008 Italian motorcycle Grand Prix: The 2008 Italian motorcycle Grand Prix was the sixth round of the 2008 MotoGP championship.  It took place on the weekend of 30 May-1 June 2008 at the Mugello Circuit.  It marked Valentino Rossi's seventh consecutive victory at the Italian motorcycle Grand Prix, a run which was to be finally broken the following year by Casey Stoner.

2007 Italian motorcycle Grand Prix: The 2007 Italian motorcycle Grand Prix was the sixth round of the 2007 MotoGP championship.  It took place on the weekend of 1–3 June 2007 at the Mugello Circuit.

Brad Binder: Brad Binder (born 11 August 1995, in Potchefstroom, South Africa) is a Grand Prix motorcycle racer from South Africa competing in the Moto2 class, best known for winning the 2016 Moto3 World Championship.  Prior to moving up to Grand Prix level, Binder contested three seasons of the Red Bull MotoGP Rookies Cup, with a best finish of fifth overall in the championship standings.  At the 2016 Spanish motorcycle Grand Prix in Jerez, Brad Binder became the first South African to win a motorcycle Grand Prix since Jon Ekerold won the 1981 Italian motorcycle Grand Prix.  Binder races in the Moto2 class in 2017, having agreed a deal with Ajo Motorsport.

2009 Australian motorcycle Grand Prix: The 2009 Australian motorcycle Grand Prix was the fifteenth round of the 2009 Grand Prix motorcycle racing season.  It took place on the weekend of 16–18 October 2009 at the Phillip Island Grand Prix Circuit.  Ducati rider Casey Stoner won the grand prix, in his home race.  Championship leader Valentino Rossi finished second, further increasing his championship lead over rival Jorge Lorenzo, who crashed out and failed to score any points.  This also marked the final Grand Prix win in the career of Marco Simoncelli before his death 2 years later on 23rd October 2011 at the 2011 Malaysian motorcycle Grand Prix after suffering a fatal crash in Race.

Spanish motorcycle Grand Prix: The Spanish motorcycle Grand Prix is a motorcycling event that is part of the FIM Grand Prix motorcycle racing season that takes place at Circuito Permanente de Jerez outside Jerez de la Frontera in Andalucia.  In addition to this event, three other motorcycling events take place in Spain as of the 2010 season: the Catalan motorcycle Grand Prix, the Aragon motorcycle Grand Prix and the Valencian Community motorcycle Grand Prix, in the autonomous communities of Catalonia, Aragon and Valencia respectively.

Czech Republic motorcycle Grand Prix: The Czech Republic motorcycle Grand Prix is a motorcycling event that is part of the Grand Prix motorcycle racing season.  Before 1993, the race was known as the Czechoslovak motorcycle Grand Prix.  Since 1965 the race is a part of World Grand Prix serie (between 1982 and 1987 race was held as a part of European Grand Prix serie only).

2009 Italian motorcycle Grand Prix: The 2009 Italian motorcycle Grand Prix was the fifth round of the 2009 Grand Prix motorcycle racing season.  It took place on the weekend of 29–31 May 2009 at the Mugello Circuit.  The Moto GP race was won by Casey Stoner with Jorge Lorenzo second and Valentino Rossi in third place.  This broke Rossi's sequence of seven consecutive victories at this event.  During the weekend, Dani Pedrosa recorded the fastest speed ever for a motorcycle grand prix bike, with 349.3 km/h breaking Makoto Tamada's record of 343.7 km/h set in 2006.  Mika Kallio and Rossi also recorded speeds above the previous benchmark.

Mugello Circuit: Mugello Circuit ("Autodromo Internazionale del Mugello" ) is a race track in Scarperia e San Piero, Tuscany, Italy.  Its length is 5.245 km .  It has 15 turns and a long straight (1.141 km ).  The circuit stadium stands have a capacity of 50,000.

Italian motorcycle Grand Prix: The Italian motorcycle Grand Prix is a motorcycling event that is part of the Grand Prix motorcycle racing season.  From 1949 to 1990 the event was known by the Italian: "Gran Premio Delle Nazioni" ("Nations Grand Prix").  It was one of the original rounds of the Grand Prix motorcycle racing calendar.  The race was held exclusively at Monza for the first 23 years of its existence.  From 1972 to 1993, the event rotated among several circuits and has been held at the Mugello Circuit since 1994.

Supporting paragraphs: 2007 Italian motorcycle Grand Prix Mugello Circuit
Answer: 5.245 km