bbbb bbdd bbin bd-r bdii bdin bibb bibi bidi bidr bidu biin bin- bind bini binn binu birb bird biri birn birr biru bnib bnin bnrr brid brin brrr brud brun bubb bubi bubu budb budd budi budu buid buin buir buiu bunb bund buni bunn bunu bur- burb burd buri burn burr buru dbrn dddd ddub dibb didi didu diii din- dini dinn dinu dird dirr drib drin drub drui druu dub- dubb dubu dudd dudu duid duin duir dunn duri durn duru duur ibid ibrd ibri idid idin idir idub idun iiii inbd ind- indi indu inid inni innr innu inri inui inun iri- irid irin irri irun iuiu n-ii nddb ndri nibi nidd nidi niir niiu nind nini niru niur nndb nnnn nrrd nubi nudd nudi nuin nunn nurd nuri nurn nurr nuru rbbb rbbr rib- ribu ridd ridi riin rind rinn riri rnbr rnin rrrr rrun rubb rubi rubu rudd rudi ruid ruin rund runi runn rurd ruri ruru ruud ruun ubbi ubid ubii ubir ubud uddi udid udin udir udun uirr unbd undi uni- unii unin unir unni urbi urdu urib urin uriu urni urri urun urur uuni uuri uuuu