a
b
c
D
100

cog

cog

100

mop

mop

100

tax

tax

100

has

has

200

cut

cut

200

rub

rub

200

hut

hut

200

that

that

300

dim

dim

300

bun

bun

300

men

men

300

rug

rug

400

fed

fed

400

sat

sat

400

job

job

400

six

six

500

wax

wax

500

let

let

500

wet

wet

500

tub

tub