Input (grade 13): The multituberculates had a cranial and dental anatomy similar to rodents with cheek-teeth separated from the chisel-like front teeth by a wide tooth-less gap (the diasteme).
Output (grade 10): The multituberculates had a head anatomy similar to rodents. They had cheek-teeth separated from the chisel-like front teeth by a wide tooth-less gap (called the diastema).