Level 1. NOTE, TONE, NOSE, STONE, NEST
Level 2. SEE, END, SEND, SEED, NEED, DENSE
Level 3. GYRE, RELY, GREY, CLERGY
Level 4. SHIN, VISA, VAIN, VANISH
Level 5. ROLE, ROLL, LONE, LORE, ENROLL
Level 6. MERE, REED, DEEM, DEER, REDEEM
Level 7. UNDO, DRUG, ROUND, GROUND, GOURD
Level 8. ROME, TERM, MORE, MOTE, REMOTE, METER
