h-ii hhhh hhip hihi hiho hinn hino hipo hipp hiri hirn hiro hnoi hohn hoho hoip hoir honi hono hoon hoop hoor hopi hopo hopp hori horn horo horr hrip hron hrpp i-no ihop iiii iiio iino iioi iioo iiop inni inno innr ino- inoi inon inor inp- inpi inpp inri inro ioii ioio ioni ionn iono iooi iooo iori iphr ipin ipoh ipop ippo ippr ipri iri- irin irio irip iroh iron irop irri n-ii nhnn nhon nhpi nhrp niip niir ninh nini nino nioh nion nioo nipr niro nnnn nnpi nnpr nohn noho noin noio noir non- noni nonn nono noo- noon nooo noop noor noph nor- nori norn noro norr npin npri nron nrpn ohhi ohho ohio ohno ohoh ohrn oiii oion onir onni onno onon onor ooho oooh oooo ophi opii opin opio opo- opon opor oppi oppo ori- orin orio orni orno oro- oron oror orph orpi orri orro phi- phin phip phno phoh phon phoo phrr piip pini pinn pino pinp pion pipi pipo pipp piri pirn piro pirr pnin pnon pnpo pnpp pnro poin poio poni pono ponp pooh poon poop poor pop- popi popo popp pori porn poro porr pphi ppih pppn pppo pppp pri- prii prin prnp pro- pron proo prop prri rhin rhio rhoh rhon riho riin rinn rino rion ripi ripp ripr riri rnin rohn rohr roin roio roir roni rono rooi roon roop roor ropo rori roro rpho rpii rpon rppn rrrr