ffff ffii ffrr fiff fifi fifo fiii fiil fili fill filn filo fini finn fino fion fior firn flii flin flon floo flor fofo foil foin foli foll folo folr fono foof fool foon for- fori forl forn foro forr fril frin frio frol fron i-no ifil ifni ifno ifnr ifor ifrf ifri iiii iiio iino iioi iioo ilin ilio ilir ill- illi illo ilni ilno iloo infi infl info inni inno innr ino- inoi inol inon inor inri inro ioii ioio iolo ioni ionn iono ioof iooi iooo iori iri- iril irin irio iron irri liff lifl lifo liii liin liir lili lill lilo linn lino lio- lion lior liri lirl lirn liro lirr llll lloo loff lofi lofn loif loin loir loli loll lolo loni lono lonr loof lool loon loor lori lorn loro lrif lroi lron lrrr n-ii nfff nfon niff niir nili nill nilo nini ninl nino nion nioo niro nnnn nofi noif noil noin noio noir nolf noli noll nolo non- noni nonn nono noo- nool noon nooo noor nor- norf nori norn noro norr nron nrrl off- offo offr ofno ofor oiii oion olin olio olli ollo olof olon olor onil onir onlf onni onno onon onor ooff oolo oooo orff orfi ori- orif oril orin orio orlo orni orno oro- orof oron oror orri orro rffl riff riif riin rill rilo rinf rinn rino riol rion riri rlif rlin rnin rnli roff rofl rofo roif roil roin roio roir rolf roll rolo roni rono roof rooi rool roon roor rori roro rrif rrrr