free three
deaf death
fought thought
four thaw
fin thin
first thirst
for thaw
fresh thresh
freeze threes
fro throw
froze throws
fief thief
firm Therm
fort thought
frill thrill
furred third
duff doth
fang thang
fawn thorn
fore thaw
fret threat
frieze threes
fug thug
oaf oath
trough troth
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