The Nursery Rhyme Trio consists of three characters from classic nursery rhymes: BEARS, Mice, and Humpty Dumpty. BEARS is a five-letter word referring to the three BEARS from the story of Goldilocks and the Three BEARS. Mice is a four-letter word referring to the three blind mice from the nursery rhyme 'Three Blind Mice'. Humpty Dumpty is a character from the nursery rhyme 'Humpty Dumpty'. Together, these three characters form the Nursery Rhyme Trio.