Original sentence: Flight 718  Grand Canyon  June 30, 1956  Douglas DC-7  Mid-air collision.Flight 826  Over Staten Island, NY  December 16, 1960  Douglas DC-8  Mid-air collision
Edited sentence: Flight 718  Grand Canyon  June 30, 1956  Douglas DC-7  Mid-air collision with TWA Constellation.Flight 826  Over Staten Island, NY  December 16, 1960  Douglas DC-8  Mid-air collision with TWA Constellation