MUTTONBIRDS

bi bo do id in is it mi mo mu no nu od oi om on or os si so ti to um un us ut

bid bin bio bis bit bod bos bot bro bud bum bun bur bus but dib dim din dis dit dom don dor dos dot dub dui dun duo ids ins ion ism its mib mid mir mis mob mod mon mor mos mot mud mun mus mut nib nim nit nob nod nom nor nos not nub nus nut obi ods oms ons orb ors ort oud our out rib rid rim rin rob rod rom rot rub rum run rut sib sim sin sir sit sob sod som son sot sou sri sub sum sun tin tis tit tod tom ton tor tot tub tui tun tut udo uns urb urd urn uts

bids bind bins bint bios bird biro bits bitt bods bond born bort bots bott bout brim brin brio bris brit bros brut buds bums bund buns bunt burd burn burs bust buts butt dibs dims dino dins dint dirt dits doit doms dons dorm dors dost dots doum dour drib drub drum dubs duit dumb duns dunt duos durn duro dust inro into ions iron mibs mids mind mint mirs miso mist mitt mobs modi mods mons morn mors mort most mots mott muds muni muns muon must muts mutt nibs nims nits nobs nodi nods noir noms nori norm nous nubs numb nurd nuts obis obit omit onus orbs orts ouds ours oust outs ribs rids rims rind rins riot robs rods roms roti rots rout rubs ruin rums runs runt rust ruts smit smut snib snit snob snot snub sorb sord sori sorn sort sour stir stob stot stub stud stum stun suit sumo surd tins tint tiro tits tods toit tomb toms tons tori torn tors tort tost tots tour tout trim trio trod trot tubs tuis tuns turd turn tuts udon udos umbo undo unit unto urbs urds urns