bbbb bbdd bbdo bd-r bddh bdii bhir bhit bhoi bhor bhot bhrt bibb bibi bibo bidi bido bidr bihi bio- bioi biot birb bird biri biro birr birt bitd bith bito bitt bobb bobi bobo bodb bodh bodi bodo bohd boho bohr boht boi- boid boii boit boob bood booh boor boot bor- bord borh bori boro borr bort botb botd both boti boto bott brdo brdt brid brih brio brit brob brod broh broo bror brot brrr btdt btob btor btrt bttb d-bo dbit dbtt dddd ddot dhod dhor dibb dibo didi dido diii dior diot dird dirr dirt dith diti dito ditt dobb dobi dod- dodd dodi dodo dohr doid doit doob dood door doot dord dori doro dorr dort dotd doth doti doto dott drib drih drit drob drod droh drot dthd dtor dtot h-ii hbio hbit hdod hdri hdtt hhhh hibi hibt hidi hihi hiho hiht hiit hiob hird hiri hiro hirt hiti hito hitt hobo hodh hodi hodr hoho hoid hoir hoit hood hoor hoot hord hori horo horr hort hotb hotd hoth hoti hoto hotr hott hrib hrid hrit hrob hrod hrtb htoh httr ibdo ibid ibot ibrd ibri ibro ibtb iddo idid idio idir idro ihdr ihit ihob ihrd iiht iiii iiio iiit iioi iioo iitr iitt iobi iod- iodd iodo ioii ioio ioit iooi iooo iori ioto irdo iri- irid irio irob irod iroh irri irti itdo itoh itoi itoo itor itri itto obbo obdt obid obit oboi obor obot obrh obri obro obtd odbo oddd oddi odio odir odoh odoo odor odot ohhi ohho ohid ohio ohob ohoh ohto oido oiii oirt oiti oobi oodi ooho ooid oooh oooo oord oort ootb orbb orbi orbo ordo ori- orid orio orit oro- oror orot orri orro orth orto otbd otho othr otit oto- otoh otoo otor otro otti otto rbbb rbbr rboh rdio rhib rhio rhob rhod rhoh rib- ribo ridd ridi rido riho riht riot riri rith riti rito ritt rob- robb robi robo robt rodd rodi rodo rohr roid roio roir roit roob rood rooi roor root rori roro rort roth roti roto rotr rott rrrr rtdt tbit tbrb tddb tdor tdri thdr thi- thio thir thoo thor thot thri thro thtb thtr tibi tidd tiht tiit tirb tird tiri tiro tirr tith titi tito titt tobi tobo tobt todd todi todo todt tohi toho toid toit tood tooh toor toot tord tori toro torr tort totd toth toti toto totr tott tri- trib trio trit trod troi troo trot trtr ttbb tttt