a-wa aaaa aaac aaca aacc aaco aact aaoo aaow aata aatc aatt aatw aawt aaww ac-t acaa acac acat acca accc acco acct acoa acot acow acta actc acto actt acwa acww aoca aotc at-t at-x ataa atac atat atax atca atcc atco atoc atot atta atto atwa atwo atwt awac awoo awow awwa axat axo- axoa axto axxo caaa caac caat cac- caca cacc caco cacw cat- cata catc cato catt catw caxa ccaa ccac ccat ccca cccc ccoc ccow cctc cctt coat coax coca coco coct coot cota cotc coto cott cotw cowt coxa ctca ctot ctta cttw cwac cwot cxxx ocac ocat occa occc occt oct- octa octo ooaa oooo ootw otac oto- otoo otow otta otto otwo owow owt- owtt owwa oxa- oxo- oxox oxxo taa- taat taca tacc taco tact taoa tata tato tatt tawa tawo tawt taww tax- taxa taxo taxt tcca tccc tctc toat toaw toca toco tooa toot tota totc toto tott towa tox- toxa toxo toxt tttt twat two- twoa twoc twoo twot txaa waaa waac waao waat waaw waax waca wacc waco wact wacx waoc waoo waow waox wata watc wato watt watw watx wawa wawc wawo wawt waxo waxx wcao wcat wcca wccc wcco wcct wccw wccx wcoa wcoc wcoo wcot wcox wcta wctc wcto wctt wctw wctx wcwa wcwc wcxo wcxt wcxx woaa woat woca wocc woco wooc woot woow wotc wott wotw wotx wowc wowo wowt woww woxo woxx wtac wtaw wtax wtca wtcc wtco wtct wtcw wtcx wtoc wtot wtow wtox wtta wttc wtto wttt wttw wtwa wtwo wtwt wtww wtxt wtxx wwac wwax wwca wwco wwct wwcw wwot wwow wwox wwta wwtc wwtw wwtx wwwa wwwc wwww wwwx wxac wxcc wxco wxcw wxcx wxow wxox wxta wxtc wxtt wxtx wxxc wxxx xact xcat xoca xoco xowa xoxo xwax xxxo xxxx