Slab - Slob
Slot - Plot
Plod - Plow
Flow - Blow
Blow==============Slow
Slow - Show
Shaw - Thaw
That - Than
Then - Thee
Tree - Cree
Free - Flee
Flea - Fled
Pled - Flea
Flee - Glee
Gree - Tree
Free - Fred
Tred - Tied
Ties - Dies
Diet - Duet
Dust - Bust
Best - Pest
Pest pelt
Pelt - Felt
Feat - Seat
Seas - Teas
peas ----------peat
Seat - Beat
Beat - BELT