Complex sentence: After 18 months in Chicago, Nancy and Rocco opened their first pizza parlor, "Guy's Pizza", featuring a popular thin crust pizza in 1971, when friends tried to get the Palese's to experiment with pan pizza.
Split into simpler sentences: After 18 months in Chicago, Nancy and Rocco opened their first pizza parlor, "Guy's Pizza", featuring a popular thin crust pizza. In 1971 friends tried to get the Palese's to experiment with pan pizza.