fff ffn ffo ffr ffs ffu fnf fnn fnr fns fnu fof fon foo for fos fou frf frn fro frr frs fru fsf fsn fso fsr fss fsu fuf fun fuo fur fus fuu nff nfn nfo nfr nfs nfu nnf nnn nno nns nnu no- nof non noo nor nos nou nrf nrn nro nrr nrs nru nsf nsn nso nsr nss nsu nun nuo nur nus nuu of- off ofn ofo ofr ofs ofu on- onf onn ono onr ons onu oo- oof oon ooo oor oos or- orf orn oro orr ors oru os- osf osn oso osr oss osu ou- ouf oun ouo our ous rff rfn rfo rfr rfs rfu rnn rno rnr rns rnu rof ron roo ror ros rou rrf rrn rrr rrs rru rsf rsn rso rsr rss rsu ruf run ruo rur rus ruu sff sfn sfo sfr sfs sfu snf snn sno snr sns snu sof son soo sor sos sou sr- srf srn sro srr srs ss- ssf ssn sso ssr sss ssu suf sun suo sur sus suu uff ufn ufo ufr ufs ufu un- unf unn uno unr uns unu uon uoo uor uos ur- urf urn uro urr urs uru usf usn uso usr uss usu uun uur uus uuu

-ous ffff ffrr ffss ffun fnrs fnuf fofo fono fons foof foon foos for- forn foro forr fors foso foss foun four fous frns fron fros frou frso frun fsfo fssf fuff fufu funf funs fuor fur- furn furo furr furs fuso fuss fusu nfff nfon nfrs nfsr nfsu nnnn nnos nnss non- nonn nono nons nonu noo- noon nooo noor noos nor- norf norn noro norr nors nos- noss nosu noun nour nous nron nsfs nsnr nsof nsos nsou nssf nsso nssr nsss nuff nunn nuno nuns nuon nurn nurr nurs nuru nuss nusu off- offo offr offs offu ofno ofor ofus onno onon onor onos onso onur onus ooff oofs oons oooo ooos oous orff orfs orfu orno orns oro- orof oron oror oros orro orrs orso orsu orus osno osnr osoo osor osos osro osso ossu osun ouff oun- our- ourn ouro ours ouu- roff rofo rono rons roof roon roor roos roro roru roso ross rouf roun rous rrrr rrun rsnn rsno rsnr rsos ruff rufo runf runn runo runs ruro rurs ruru ruso russ rusu ruun s-os sfor sfos sfro sfss sfsu snfu snns snoo snor snos snrs snur snus sofo son- sono sons sonu soof soon soor soos sorn soro sorr sors soru soso soss souf soun sour sous srnn srno sros ssns ssrs sssf ssss suf- suff sufr sufs sufu sun- sunn suno suns sunu suor suos sur- surf surn suro surr surs suru sus- suso suss susu suus ufos unno unns unon unos unrf unro unrs uns- unso unus uofo uor- urff urns uro- uroo urso urss ursu urun urur urus usfs usno usnr usnu usos ussf ussr usss ussu usun usus uuno uuuu

fofos fonos fonso foons forno foros forro forso forss forur forus fosun fouro fours frons frorn fu-fu fuffs fuorn furo- furor furrs furus fuso- fuson fusor fusun fusus nnooo no-no nofor nofou nofun non-u nonno nonos nonus noons noonu norns noron norro norun noso- noson nouns nroff nu-nu nunns nunon nunun nuoro nuosu nursu nurun nurus nusus offof offon offun ofono oforn ofosu ofour onoff onoon onorn onour oonus ooooo orfor ornon ornus orono oroso orosu orson orsun oruro ososo ossos ossun ossur osusu ouoro ourno ro-ro rofor ronno roofs roons rosso rosss rosu rouns rsssf ruffo ruffs rufo- rufus runo- runof runon rusor russo s-o-r sfouf snoff snoof snous snrfs snuff snuss so-so sofun sono- sonof sonor sonos sonus soonr soons sooru sorns soron soror soros sorso sorsu sorus sosno soss- sosus souff sours sous- sron sroof sssss suffr suffs sufon sunno sunos surfs surur surus susso susun susus suuns ufofu unfun unfur unnun unnur unoor unorn unrun unson unsu unsun unurn uros urour urous urson ursus usfor usour usson ussun uuuuu

foofoo foofur forfun fornos forros fosso fossor foufou fourof fourou fouson funoon funrun furfur furors furour furrfu furuno fusors fusoun noforn nofuss non-no nonnus nonono nonoon noonoo noonor noroff noroof noruns nosons nosson nounou nurnus nusnus of-run ofsons on-off oooooo orrour orsons osorno ossous ououso ouroun ousrou rofors ronnon ronron ronson rosson rounou ruffus rufous run-on runfor runoff runons runson russo- russon russus sforno snoffs snofru snuffs sofono sonous sonsof sonson soosoo sorors sorous sorrus sorsor sosoon souron sourou sousou sssfrs sunrun sunsun sununu surono suroso susurr unroof unsour ursons

fonofos foo-foo fossors fou-fou fousson funruns furrour nononos nonroof nossors off-off onoffon ronsons rousson run-off run-ons runoffs runsoff sonoro- sonsoro sorfors sou-sou sourson sssssss sun-sun sunroof surnoun suursoo unroofs usurous

forfrorn fosforus froson froufrou nonnosus nononono noon-sun sonorous sunroofs sussurus susurrus

four-four frou-frou froufrous funfunfun furfurous ronnofors runrunrun sonourous sous-sous susurrous

frou-frous unsonorous

nonsonorous