Complex sentence: In 1984, he was awarded the Richard and Hilda Rosenthal Foundation Award, a prize worth $5,000, from the American Academy and Institute of Arts and Letters for his novel, but he did not show up to accept it.
Split into simpler sentences: In 1984, he was awarded the Richard and Hilda Rosenthal Foundation Award, a prize of $5,000. Awarded by the American Academy and Institute of Arts and Letters for his novel, but he did not show up to accept it.