SUBROUTINE

be bi bo en er es et in is it ne no nu oe oi on or os re si so ti to un us ut

ben bes bet bin bio bis bit bos bot bro bun bur bus but ens eon ern ers ins ion ire its neb net nib nit nob nor nos not nub nus nut obe obi oes one ons orb ore ors ort ose our out reb rei res ret rib rin rob roe rot rub rue run rut sei sen ser set sib sin sir sit sob son sot sou sri sub sue sun ten tie tin tis toe ton tor tub tui tun uns urb urn use ute uts

bens bent best bets bier bine bins bint bios biro bise bite bits bone bore born bort bots bout bren brie brin brio bris brit bros brut buns bunt burn burs bust bute buts ebon eons erns eros erst etui euro inro into ions ires iron nebs nest nets nibs nite nits nobs noes noir nori nose note nous nubs nuts obes obis obit ones onus orbs ores orts ours oust outs rebs rein reis rent rest rets ribs rins riot rise rite robe robs roes rose rote roti rots roue rout rube rubs rues ruin rune runs runt ruse rust ruts sent sine sire site snib snit snob snot snub sone sorb sore sori sorn sort sour stir stob stub stun suer suet suit sure tens tern tier ties tine tins tire tiro toes tone tons tore tori torn tors tour tres trio true tube tubs tuis tune tuns turn unbe unit unto urbs urns urus user utes