bbbb bbin bbpr bhir bhoi bhor bibb bibi bibo bihi biin bin- binh bini binn bino bio- bioi bion bipp birb biri birn biro birr bnib bnin bnor bnpp bnrr bobb bobi bobo bohn boho bohr boi- boii boin boni bonn bono boob booh boon boop boor bopp bor- borh bori born boro borr brih brin brio brno brob broh bron broo bror brrr h-ii hbio hhhh hhip hibi hihi hiho hinn hino hiob hipo hipp hiri hirn hiro hnoi hobo hohn hoho hoip hoir honi hono hoon hoop hoor hopi hopo hopp hori horn horo horr hrib hrip hrob hron hrpp i-no ibon ibri ibro ihob ihop iiii iiio iino iioi iioo iiop inbo inni inno innr ino- inoi inon inor inp- inpi inpp inri inro iobi ioii ioio ioni ionn iono iooi iooo iori iphr ipin ipoh ipop ippo ippr ipri irbp iri- irin irio irip irob iroh iron irop irri n-ii nbbo nbpp nhnn nhon nhpi nhrp nibi nibo niip niir ninh nini nino nioh nion nioo nipr niro nnnn nnpi nnpr nobi nobo nohn noho noib noin noio noir non- noni nonn nono noo- noob noon nooo noop noor noph nor- norb nori norn noro norr npin npri nron nrpn obbo obin oboi obon obor obrh obri obro ohhi ohho ohio ohno ohob ohoh ohrn oiii oion onir onni onno onon onor oobi ooho oooh oooo ophi opii opin opio opo- opon opor oppi oppo orbb orbi orbo ori- orin orio orni orno oro- oron oror orph orpi orri orro phi- phin phip phno phob phoh phon phoo phrr pibb pibi piip pini pinn pino pinp piob pion pipi pipo pipp piri pirn piro pirr pnin pnon pnpo pnpp pnro pobo poin poio poni pono ponp pooh poon poop poor pop- popi popo popp porb pori porn poro porr pphi ppib ppih pppn pppo pppp pri- prii prin prnp pro- prob pron proo prop prri rbbb rbbr rboh rhib rhin rhio rhob rhoh rhon rib- ribo riho riin rinn rino rion ripi ripp ripr riri rnbr rnin rob- robb robi robo rohn rohr roin roio roir roni rono roob rooi roon roop roor ropo rori roro rpho rpii rpob rpon rppn rrrr