Complex sentence: The 2009--10 football season marks the 130th year in the history of Hertfordshire-based English association football club Watford F.C. It officially began on 1 July 2009, and will end on 30 June 2010, although competitive matches are only played between August and May.
Split into simpler sentences: The 2009--10 football season marks the 130th year in the history of Hertfordshire-based English association football club Watford Football Club. The season officially began on 1 July 2009, and will end on 30 June 2010, although competitive matches are only played between August and May.