Level 1. LOCAL, LOGICAL, LOGIC
Level 2. SPICE, SPICY, SPECIFY
Level 3. GROVE, FORGIVE, GRIEF
Level 4. FELL, FUEL, FULL, HELL, HULL, HELPFUL, PULL
Level 5. HEEL, HIVE, VILE, HELVE, LEECH, VEHICLE, VICE
Level 6. CENTO, COVER, COVET, CRONE, CONVERT, OVERT
Level 7. GRAM, PRAM, RAMP, ROAM, ROMP, PROGRAM, ROAR
Level 8. FARM, HALF, HARM, HURL, MAUL, MURAL, HARMFUL, HAUL
