Task: Explanation
Input (English): Soup or Sonic is an animated cartoon distributed in the Merrie Melodies series, starring Wile E. Coyote and the Road Runner. It was first aired on May 21, 1980 as a part of the television special "Bugs Bunny's Bustin' Out All Over" and was one of four new cartoons released. While the opening card was used for the first time, the closing card for this cartoon was previously used during the 1959-1960 season. This is the only canonical cartoon in which Wile E. Coyote catches the Roadrunner without him escaping afterward. Question:  Which characters were in a unique canonical cartoon from the "Looney Tunes" and "Merrie Melodies" series? Answer: Wile E. Coyote and the Road Runner
Output (English):  This is the only canonical cartoon in which Wile E. Coyote catches the Roadrunner without him escaping afterward.