nafa naff nafi nafl naia naib naid naif nail nain nair nala nald nali nall nalu nan- nana nanb nand nani nann nanu nara nard narf nari narn narr naru naul naur nbaa nbad nbaf nbar nbfa nbfl nbia nbuf ndaa ndai ndau nddb ndfa ndfi ndia ndna ndrf ndri nfaa nfda nfff nfia nfib nfld nfra niab niad niaf nial nian niau nibi nida nidd nidi nifa niff niia niir niiu nila nild nili nill nilu nina nind nini ninl nira niru niur nlab nlra nlrb nndb nnnn nrab nrlb nrna nrrd nrrl nuan nuba nubi nubl nuda nudd nudi nuff nuin nuli null nuna nunn nura nurd nuri nurl nurn nurr nuru raab raad raaf raan raba rabb rabi rabl rabu rada radd radl radr radu rafa raff rafi raia raid raif raii rail rain rair raiu rala ralb ralf rall rana rand rani rann rara rarb rarf rari raua raub raud rauf raul raun rbaf rbbb rbbr rdfa rdna rfdi rffl rfid riaa riab riad riai rial rian riau rib- riba ribu rida ridd ridi rifa riff rifu riia riif riin rila rill rilu rina rind rinf rinn riri rlab rlif rlin rlua rnaf rnai rnal rnbr rndf rnin rnld rnli rrad rrif rrna rrrr rrun ruad ruan ruba rubb rubi rubu ruda rudd rudi rudl rufa ruff ruid ruif ruin rula rull runa rund runf runi runn rura rurd ruri ruru ruud ruun uafa uair uald uaru uaua ubal ubar ubba ubbi ubid ubii ubir ubla ubli ubra ubud udaa udad udal udar udau uddi udid udin udir udra udun uffa ufra uira uirr ulaa ulad ulai ulan ular ulla ulli ullr ulna ulua ulul unaa unai unal unan unar unau unbd unda undi unfd uni- unia unif unii unin unir unlf unna unni unra unrf urad urai ural uran urau urba urbi urda urdu urfa urff urfi uria urib urif urin uriu urla urna urni urra urri urun urur uulu uuni uuri uuuu