bbbb bbox bbwr bhor bhot bhrt bobb bobo bobw boho bohr boht bohw boob booh boor boot boow boox bor- borh boro borr bort borw botb both boto bott botw bowr bowt brob broh broo bror brot brow brox brrr btob btor btrt bttb btwo hbox hhhh hobo hoho hoor hoot hoox horo horr hort horw hotb hoth hoto hotr hott hotw howh howr howt hrob hrtb htoh httr obbo obor obot obox obrh obro ohho ohob ohoh ohow ohto ooho oooh oooo oort ootb ootw orbb orbo oro- oror orot orro orth orto orwo otho othr oto- otoh otoo otor otow otro otto otwo owoh owow owt- owth owtt oxo- oxox oxxo rbbb rbbr rboh rhob rhoh rob- robb robo robt rohr roob roor root roox roro rort roth roto rotr rott rowb rowh rowr rowt roww roxo rrrr tbox tbrb thoo thor thot thow thro thrw thtb thtr tobo tobt toho tooh toor toot toro torr tort torx toth toto totr tott towh tox- toxo toxt troo trot trow trox trtr ttbb tttt twbt two- twob twoh twoo twot txtr wbbb wbbo wbbr wbbt wbbw wbbx wbhb wbhh wbhr wbht wbhw wbhx wbob wbor wbow wbox wbrb wbrh wbrr wbrt wbrw wbrx wbth wbto wbtr wbtt wbtw wbtx wbwb wbwo wbwt wbwx wbxb wbxr wbxx whbb whbo whbr whbt whbx whhb whhh whho whhr whht whhw whoo whor whot whow whr- whrb whrh whro whrw whrx whtb whth whto whtt whtx whwb whwh whxr whxt wobb wobo wobt wobx woht woob woot woow worb woro worr wort worw worx wotb woth wotr wott wotw wotx wowb wowo wowt woww woxo woxr woxx wrbb wrbh wrbo wrbt wrbw wrbx wrho wrht wrob wroo wrot wrow wrox wrrb wrrh wrro wrrw wrrx wrtb wrth wrto wrtr wrtw wrwb wrwh wrwr wrxb wrxo wrxw wrxx wtbb wtbh wtbo wtbr wtbx wthb wthr wtht wtob wtoh wtor wtot wtow wtox wtrb wtrh wtro wtrt wtrw wtrx wttb wtth wtto wttr wttt wttw wtwb wtwo wtwr wtwt wtww wtxr wtxt wtxx wwbb wwbr wwbt wwhb wwho wwhr wwht wwhx wwor wwot wwow wwox wwrb wwrr wwrw wwrx wwth wwtr wwtw wwtx wwwh wwwr wwww wwwx wxbb wxbt wxbw wxbx wxhb wxht wxow wxox wxrb wxro wxrr wxrt wxrx wxtb wxtr wxtt wxtx wxxb wxxx xbow xbox xoro xoth xoxo xtro xxxo xxxx