igbo igcc igga igia igni igno ignu igon igoo igor igra igri igua iiac iica iiii iiio iino iioi iioo iira iirc iiuc inab inac inai inan inao inar inau inba inbo inca incb inci inco incr inga ingo inia inig inna inni inno innr innu ino- inoi inon inor inou inra inri inro inua inui inun ioan ioba iobi iocg ioci ioii ioio iona ioni ionn iono iooi iooo iora iorg iori ioug ioun irac irai iran irao irar irca ircc ircg ircu iri- iria iric irig irin irio irna irob iroc iron irra irrc irri irun iucc iuiu iuno iura n-ii naaa naab naac naag naai naan naar naba nabc nabi nabo nabu naca nacc naci naco naga nagc nagi nago nagu naia naib naic naig nain naio nair nan- nana nanb nang nani nann nano nanu naoc naoi naor nara narc narg nari narn naro narr naru nauo naur nbaa nbar nbbc nbbo nbca nbcc nbci nbco nbia nbic ncaa ncac ncar ncba ncbc ncbi ncca nccc ncci nccn nccr nccu ncga ncgr ncia ncna ncnc ncoa ncoc ncor ncra ncrc ncri ncua ngab ngac ngai ngan ngao ngia ngic ngio ngon ngor ngou ngri ngur nguu niab niac nian niau nibi nibo nica nicc nici nico nicu nigc nigg nigo niia niir niiu nina ning nini nino niog nion nioo niou nira niro niru niur nngn nnnn noaa noac noba nobc nobi nobo nobu noci noco noga nogg nogo noia noib noin noio noir non- nona nong noni nonn nono nonu noo- noob noon nooo noor nor- nora norb norc norg nori norn noro norr noun nour nrab nrca nric nrna nroc nron nrrc nuan nuba nubc nubi nuca nuci nucu nuin nuna nunc nung nunn nuno nuoc nuon nura nurc nuri nurn nurr nuru oaau oaic oara obai oban obba obbo obia obin oboi obon obor obra obri obro ocab ocac ocan ocbc occa occc occi occn ocga ocin ocna ocon ocra ocro ocrr ocur ogai ogar ogb ogba oggi ogin ogna ogni ogoa ogog ogoi ogon ogou ogra ogri ogro ogui ogun oiba oici oigo oiii oion oira onab onan onar onc- onca onco onga ongi ongo ongu onia onic onir onna onni onno onon onor onra onur ooaa ooba oobi oocr ooia oona oooo oora orab orac orai oran orao orar orba orbb orbi orbo orbu orca orci orco orga orgn orgo ori- oria oric orig orin orio orna ornc orni orno oro- oron oror orra orri orro orub ouac ouan oucc ouii ouin ouir oun- ouna oung our- oura ourn ouro ouu- raab raag raan raba rabb rabi rabo rabu rac- raca racc raci raco racu raga ragg ragi rago ragu raia raic raig raii rain rair raiu rana ranc rang rani rann rano raob raoc rara rarb rari raro raua raub rauc raun rbbb rbbr rcac rcbc rcbo rccb rccc rcga rcgc rcic rcnr rcon rcrg rgan rgba rgbi riaa riab riai rian riau rib- riba ribo ribu rica ricc rico riga rigg rigi rigo rigu riia riin rina ring rinn rino rion riou riri rnag rnai rnbr rnco rnin roab roag roan roar rob- roba robb robi robo robu roca rocc roco roga rogg rogi rogo roia roig roin roio roir roiu rona ronc rong roni rono roob roog rooi roon roor rora rorc rori roro roru roua roub roun rrna rrrr rrun ruag ruan ruba rubb rubi rubu ruca ruci ruga rugg rugi ruin runa runc rung runi runn runo rura rurc ruri ruro ruru ruun uabc uaca uair uang uaoc uarc uaru uaua ubac ubar ubba ubbi ubbo ubic ubii ubir uboc ubon ubra ucai ucan ucar ucbc ucca ucci ucin ucio ucon ucrc ucua ugab ugao ugar ugcc ugcg uggo ugia ugni ugra ugri ugro ugur uguu uica uira uirr unaa unac unai unan unar unau unca uncc uncg unci unco unga ungo ungu uni- unia unic unii unin unio unir unna unni unno unon unra unro uocc uor- urac urai uran urao urau urba urbi urca urci urga urgi urgu uria urib uric urin uriu urna urni uro- uroa uroo urra urri urun urur uuni uuno uuoc uuri uuuu