bbbb bboy bbyo bhir bhit bhoi bhor bhot bhoy bhrt bibb bibi bibo bihi bio- bioi biot birb biri biro birr birt biry bith bito bitt bobb bobi bobo boby boho bohr boht bohy boi- boii boit boob booh boor boot bor- borh bori boro borr bort bory botb both boti boto bott boty boyi boyo brih brio brit brob broh broo bror brot brrr bry- bryo btob btor btrt btry bttb byit byob byoi byrt byth h-ii hbio hbit hhhh hibi hibt hihi hiho hiht hiit hiob hiri hiro hirt hiti hito hitt hiyo hobo hoby hoho hoir hoit hoor hoot hori horo horr hort hory hotb hoth hoti hoto hotr hott hoyi hoyt hrib hrit hrob hrtb hryb htoh httr hybo hyo- hyrt i-by ibot ibri ibro ibtb ibyi ihit ihob iiht iiii iiio iiit iioi iioo iitr iitt iobi ioby ioii ioio ioit iooi iooo iori ioto irby iri- irio iriy irob iroh irri irti itby itoh itoi itoo itor itri itry itto itty obbo obby obit oboi obor obot oboy obrh obri obro ohhi ohho ohio ohob ohoh ohto ohyo oiii oirt oiry oiti oobi ooby ooho oooh oooo oort oory ootb ooty orbb orbi orbo orby ori- orio orit oro- oror orot oroy orri orro orry orth orto otho othr otit oto- otoh otoo otor otoy otro otry otti otto otyr oyri rbbb rbbr rboh rhib rhio rhob rhoh rib- ribo riby riho riht riot riri rith riti rito ritt riyo rob- robb robi robo robt roby rohr rohy roio roir roit roob rooi roor root rori roro rort rory roth roti roto rotr rott roty royt rrrr ryhb ryob ryoh ryot ryth rytt ryyt tbit tbrb thi- thio thir thoo thor thot thri thro thtb thtr thyh tibi tiht tiit tirb tiri tiro tirr tiry tith titi tito titt tiyi tiyo to-y tobi tobo tobt toby tohi toho toit tooh toor toot tori toro torr tort tory toth toti toto totr tott toty toyb toyo toyt tri- trib trio trit troi troo trot troy trtr try- tryb tryo ttbb ttoy tttt tybi tybo tyht tyir tyr- tyro tyrr tyti tyto tytt tyty ybor ybry yhit yirb yirr yiti yobi yobo yoho yoit yoot yori yoro yort yory yott yoyo yrho ytht yyyy