SUBFRACTION

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abo abs act aft ain air ais ait ani ant arb arc arf ars art ban bar bas bat bin bio bis bit boa bos bot bra bro bun bur bus but cab can car cat cis cob con cor cos cot cru cub cur cut fab fan far fas fat fib fin fir fit fob fon for fou fro fub fun fur ifs ins ion its nab nib nit nob nor nos not nub nus nut oaf oar oat oba obi oca oft ons ora orb orc ors ort our out rai ran ras rat ria rib rif rin rob roc rot rub run rut sab sac sat sau sib sic sin sir sit sob son sot sou sri sub sun tab tan tao tar tas tau tic tin tis ton tor tub tui tun uns urb urn uta uts

abos abri abut acts ains airn airs airt aits anis anti ants anus arbs arco arcs arfs arts asci aunt auto bait bani bans barf barn bars bast bats bias bins bint bios biro bits boar boas boat bora born bort bota bots bout bran bras brat brin brio bris brit bros brut buna buns bunt bura burn burs bust buts cabs cain cans cant carb carn cars cart cast cats ciao cion cist coat cobs coft coif coin coir coni cons corf corn cors cost cots crab crib cris crit crus cubs cuif cunt curb curf curn curs curt cuts fabs fact fain fair fano fans faro fart fast fats faun fiar fiat fibs fico fino fins firn firs fisc fist fits fobs foci foin fons font fora forb fort four frat frit fubs fuci funs furs icon info inro into ions iota iron isba nabs naif naoi naos narc nibs nits nobs noir nori nota nous nubs nuts oafs oars oast oats obas obia obis obit ocas onus orbs orca orcs orts osar otic ours oust outs raft rain rais rani rant rato rats rias ribs rifs rift rins riot roan robs rocs rota roti rots rout rubs ruin runs runt rust ruts sain sari sati scab scan scar scat scot scut sift snib snit snob snot snub soar soba soca sofa soft sora sorb sori sorn sort sour stab star stir stoa stob stub stun suba suit sura surf tabs tabu taco tain tans taos tarn taro tars taus tics tins tiro tofu tons tora torc tori torn tors tour trio tsar tuba tubs tufa tuis tuna tuns turf turn unai unci unco unit unto urbs uric urns ursa utas