bbbb bblb bbox bhil bhit bhoi bhot bibb bibi bibl bibo bihi bihl bili bill bilo bilt bio- bioi biol biot biox bith bito bitt bitx bivi bivl bixi blbt blio blit blix blob bloo blot blvt bobb bobi bobo bohl boho boht boi- boii boil boit boli boll bolo bolt boob booh bool boot boox botb both boti boto bott bovi bovo btob bttb btvi h-ii hbio hbit hbox hbtl hhhh hi-v hibi hibt hihi hiho hiht hiil hiit hili hill hilo hilt hiob hiti hito hitt hitv hobo hohl hoho hoil hoit hoix hol- holb holh holi holl holo holt hool hoot hoox hotb hoth hoti hotl hoto hott hovi htoh htol ibot ibox ibtb ibtl ihit ihob ihvh iihl iiht iiii iiio iiit iioi iioo iitt ilbx ilio ilit ill- illi illo illt iloo ilot ilxx iobi ioii ioio ioit iolo iooi iooo ioto itil itll itoh itoi itol itoo itto ivbv ixil ixxi lhhh libo libx lih- lihi liho liht liii liiv lilb lili lill lilo lilt lio- litb lith liti litl lito litt livi livo lixi lixt llll lloo lo-v lob- lobb lobh lobi lobo lohi loho loit loix loli loll lolo loob lool loot loth loti lotl loto lott lotv lovo lox- loxo ltbl ltib lttv lvii lviv lvov lxii lxiv lxtv lxvi lxxi lxxv lxxx obbo obit obix oboi obol obot obox obvi ohhi ohho ohio ohob ohoh ohto oiii oiti olbo olib olio olit olli ollo olot olov olvi oobi ooho oolo oooh oooo ootb otho otit oto- otoh otoo otov otti otto ovi- ovil ovo- ovol ovoo ovot oxi- oxo- oxox oxxo tbil tbit tbox tbvi thi- thil thio thoo thot thtb tibi tiht tiit tilh till tilo tilt tith titi tito titt tivi tivo tixt tlli tltx tobi tobo tobt tohi toho toil toit tol- toli toll tolo tolt tooh tool toot toth toti toto tott tovo tox- toxi toxo toxt ttbb tttt tvhb tvil tvtv txii vhhh vihi viii vili vill vilt viol vith viti vito vitt vivi vivo vixx vlli vlvt voho voil voio voit voix voli voll volo volt volx vool voot voth voto voxx vt-i vt-x vtol vtvl vvob vvvv xbox xhoi xibo xiii xil- xili xill xito xixi xlib xlii xliv xlix xlox xlvi xolo xoth xoxo xtol xvii xxii xxiv xxix xxvi xxxi xxxo xxxv xxxx