Input (grade 12): Foster's Home for Imaginary Friends was founded by the elderly Madame Foster to provide a foster home for abandoned imaginary friends.
Output (grade 10): In the show's world, imaginary friends are as real as humans. Once the creator decides he or she does not want the imaginary friend anymore, they are sent to live at "Foster's Home for Imaginary Friends," an adoption home for the unwanted imaginary friends.