Complex sentence: In 1999 Trevor Lock appeared in "Number One Show" with Daniel Kitson and Andrew Maxwell at the Gilded Balloon, Cowgate and also performed his play "Friday Night At The End Of The World".
Split into simpler sentences: In 1999 Trevor Lock appeared in "Number One Show" with Daniel Kitson and Andrew Maxwell at the Gilded Balloon, Cowgate. The same year he performed his play "Friday Night At The End Of The World".