Complex sentence: The 2009 UCI Cyclo-cross World Championships took place in Hoogerheide, Netherlands on the weekend of January 31 and February 1,2009.
Split into simpler sentences: The 2009 UCI Cyclo-cross World Championships is the World Championship for cyclo-cross. It took place in Hoogerheide, Netherlands on the weekend of January 31 and February 1,2009.