Following is a demo of the imaginary_friends.pl program.
joanne has an imaginary friend moose, who they went on an adventure with in a circus. lou has an imaginary friend grizzly_bear, who they went on an adventure with in a train. ralph has an imaginary friend seal, who they went on an adventure with in a rock_band. winnie has an imaginary friend zebra, who they went on an adventure with in a spaceship.