Complex sentence: His paintings are including in several important collections including the Museum of Modern Art in New York, he won the Guggenheim Award in 1960, represented Ireland in the XXX Venice Biennale and the Hugh Lane Gallery in Dublin held a major survey of his work in 2002.
Split into simpler sentences: His paintings are in several important collections including the Museum of Modern Art in New York. He won the Guggenheim Award in 1960, represented Ireland in the XXX Venice Biennale and the Hugh Lane Gallery in Dublin held a major survey of his work in 2002.