Create an appropriate input to the command to produce the output.
Input: Command: "List all the words starting with letter 'A'."
Output: 
Apple, air, animal, Astronaut
Input: 
Command: "List all the words starting with letter 'A' in an alphabetical order."
Output: 
Animal, apple, air, Astronaut
input: Apples, birds, monkeys, Astronauts