Complex sentence: A gallery spokeswoman said that all 11 pieces relating to JFK sold before the fair opened, with around 12 other works purchased within an hour of the event launch while one US couple commented "as Americans, we find it mildly offensive".
Split into simpler sentences: A gallery spokeswoman said that all 11 pieces relating to JFK sold before the fair opened, with around 12 other works purchased within an hour of the event launch. One US couple commented "as Americans, we find it mildly offensive".