Level 1. CHAT, TACT, ATTACH, THAT
Level 2. NEST, RENT, REST, SENT, STERN, TERN
Level 3. PEER, RENT, TEEN, ENTER, REPENT, TREE
Level 4. PILOT, POSIT, SPLIT, PISTOL, SPOIL
Level 5. NEST, NOSE, NOTE, SENT, SNOT, ONSET, STONE, TONE
Level 6. MORE, NORM, NOSE, ROSE, SOME, SNORE, SERMON, SORE
Level 7. ABLE, BALE, BARE, BEAR, EARL, REAL, RELY, BARLEY, YEAR
Level 8. MERE, MUSE, RUSE, SEEM, REUSE, SERUM, RESUME, SURE
