Complex sentence: The 2013 Monaco Grand Prix (formally known as the Formula 1 Grand Prix de Monaco 2013) was a Formula One motor race that took place on 26 May 2013 at the Circuit de Monaco, a street circuit that runs through the principality of Monaco.
Split into simpler sentences: The 2013 Monaco Grand Prix (formally known as the Formula 1 Grand Prix de Monaco 2013) is a Formula One motor race that is scheduled to take place on 26 May 2013. The race will be held at the Circuit de Monaco, a street circuit that runs through the principality of Monaco.