Infer the
common word.
Example:
Show, Free, Past
= Time
100

bacon, cheese, ham =

BURGER

100

brush, paste, pick = 

TOOTH

100

cup, mug, hot =

COFFEE

100

skate, ironing, diving  =

BOARD

100

screen, shine, light =

SUN

200

pocket, children's, second-hand = 

BOOK

200

free, one, milky =

WAY

200

foot, finger, hand =

PRINT

200

tooth, head, ear =

ACHE

200

pain, pack, ward =

BACK

300

almond, chocolate, soy =

MILK

300

credit, birthday, playing =

CARD

300

sea, race, raddish =

HORSE

300

private, vocational, middle =

SCHOOL

300

 photo, lady, bed =

BUG

400

mountain, table, counter =

TOP

400

cut, news, doll =

PAPER

400

auto, tele, photo =

AUTO

400

camp, house, cracker  =

FIRE

400

lip, yard, candle =

STICK

500

peri, stetho, micro =

SCOPE

500

yellow, scarlet, dengue =

FEVER

500

secret, computer, launch = 

CODE

500

polis, politan, card =

METRO

500

board, head, court =

ROOM