bbbb bbdd bbpr bd-r bddh bdii bhir bhur bhuu bibb bibi bidi bidr bidu bihi bihu bipp bipu birb bird biri birr biru bprd brid brih brrr brud bruh brup bubb bubi bubu budb budd budi budu buhi buhr buid buir buiu bur- burb burd burh buri burp burr buru dbpd dddd ddub dhbp dhpr dhur dibb dibp didi didu dihu diii dipp dipu dird dirr dphp dpph drib drih drip drub drui drup druu dub- dubb dubh dubu dudd dudu duhr duhu duid duir duri duru duur h-ii hdri hhhh hhip hibi hibu hidi hihi hiiu hipp hird hiri hiru hpdh hrib hrid hrip hrpp hrud hubb hubi hudd hudi hudu huhi huhu huib huid huir hupp hurd huri hurr huru huub ibid ibrd ibri idid idir idub ihdr ihrd ihub ihud iiii ipdi iphr ipid ippr ipri ipur irbp irdp iri- irid irip irri iuiu iupp pdpr phi- phip phrr pibb pibi piip pipi pipp piri pirr piru pphi ppib ppid ppih pppd pppp ppru ppur pri- prid prii prpd prrd prri prud pruu pubu pudu puhi puid puir puiu pupi pupu pur- purb puri purp purr puru rbbb rbbr rdbp rhib rib- ribu ridd ridi ripd ripi ripp ripr riri rpdp rpii rrrr rubb rubi rubp rubu rudd rudi rudp ruhh ruhi ruhr ruid rupp rurd ruri rurp ruru ruud u-rp ubbi ubid ubii ubir ubud uddi udid udir udpd uh-d uhid uhuh uhup uipi uirr uppp uppu upri upup urbi urdu urib uriu urrh urri urup urur uuri uuuu