Complex sentence: The National Gallery is an art museum in Trafalgar Square in the City of Westminster, in Central L Fyoyoounded in 1824, it houses a collection of over 2,300 paintings dating from the mid- 13th century to 1900.
Split into simpler sentences: The National Gallery is an art museum in Trafalgar Square in the City of Westminster, in Central London. Founded in 1824, it houses a collection of over 2,300 paintings dating from the mid- 13th century to 1900.