b-u bbb bbf bbi bbn bbr bbs bbu bby bfb bff bfi bfn bfr bfs bfu bfy bi- bib bif bii bin bir bis biu biy bnb bnf bni bnn bnr bns bnu brb brf bri brn brr brs bru bry bsb bsf bsi bsn bsr bss bsu bsy bub buf bui bun bur bus buu buy by- byf byi byn byr bys byu fbb fbf fbi fbn fbr fbs fbu fff ffi ffn ffr ffs ffu ffy fib fif fii fin fir fis fiu fnb fnf fni fnn fnr fns fnu frb frf fri frn frr frs fru fry fsb fsf fsi fsn fsr fss fsu fub fuf fui fun fur fus fuu fy- fyb fyi fyn i-f ibb ibf ibi ibn ibr ibs ibu iby ifb iff ifi ifn ifr ifs ifu ify iib iif iii iin iir iis iiu in- inb inf ini inn inr ins inu iny ir- irb irf iri irn irr irs iru iry is- isb isf isi isn isr iss isu isy iu- iub iui iur ius iyr iys iyy n-i nbb nbf nbi nbn nbr nbs nbu nfb nff nfi nfn nfr nfs nfu nib nif nii nin nir nis niu nnb nnf nni nnn nns nnu nrb nrf nri nrn nrr nrs nru nry nsb nsf nsi nsn nsr nss nsu nsy nub nui nun nur nus nuu nuy nyf nyn nys nyu nyy rbb rbf rbi rbn rbr rbs rbu rfb rff rfi rfn rfr rfs rfu rib rif rii rin rir ris riy rnb rni rnn rnr rns rnu rny rrb rrf rri rrn rrr rrs rru rsb rsf rsi rsn rsr rss rsu rub ruf rui run rur rus ruu ruy ry- ryf ryn ryr rys ryu ryy sbb sbf sbi sbn sbr sbs sbu sby sfb sff sfi sfn sfr sfs sfu sib sif sii sin sir sis siu snb snf sni snn snr sns snu sny sr- srb srf sri srn srr srs sry ss- ssb ssf ssi ssn ssr sss ssu sub suf sui sun sur sus suu suy sy- syb syi syn syr sys syu ubb ubf ubi ubn ubr ubs ubu uby uff ufi ufn ufr ufs ufu uib uif uii uin uir uis uiu un- unb unf uni unn unr uns unu uny ur- urb urf uri urn urr urs uru ury usb usf usi usn usr uss usu uun uur uus uuu uyi uys uyu ybf ybi ybr ybs yby yff yfr yfs yfu yif yii yin yir yis ynn yns ynu yny yrf yrn yrs yru ysb ysi ysr yss ysu ysy yui yun yur yus yuu yuy yyb yyf yys yyu yyy

bbbb bbbs bbfn bbin bffs bfsi bfsr bibb bibi bibs biff bifi biin biis bin- bini binn bins binu biny birb biri birn birr birs biru biry bis- biss bisu bisy biys bnib bnin bnrr bnss brfu brin bris brns brrr brrs brsb brsr brun brus bry- bryn bsff bsfs bsin bsns bubb bubi bubs bubu buff bufr buif buin buir buis buiu bunb buni bunn buns bunu bur- burb buri burn burr burs buru bury busi buss busu busy buus buyi buys buyu byrn bysb bysi byss bysy byun fbis fbrs fbus ffff ffii ffrr ffss ffun fibs fiff fifi fiii fini finn fins firn firs firy fisi fiss fisu fnrs fnuf frib frin fris frns frsb frub frun frys fsfi fssf fubb fubs fubu fuff fufu fuir funf funs fur- furi furn furr furs fury fusi fuss fusu fuyu fyfi fynn fyrs fyry i-by ibfi ibis ibns ibri ibsf ibsn ibss ibus ibuy ibyi ifbb ifby iffy ifis ifni ifnr ifns ifrb ifrf ifri ifsb iiii iiis iirs iisi iisr iisu inby infi infs infy inis inni innr inns innu inny inri inrs inss insu inui inun inus irby irfu iri- irin iris iriy irri irrs irsf irun irus iryn isbn isin isis isri issf issi issr isss issu issy isus isys iuiu iuss n-ii nbuf nfff nfib nfrs nfsr nfsu nfyb nibi nibs niff niir niiu nini nins nirs niru nisi niss nisu niur niyi nnnn nnss nsfs nsin nsis nsnr nssb nssf nssr nsss nsub nubi nubs nuby nuff nuin nunn nuns nuny nuri nurn nurr nurs nuru nusi nuss nusu nusy nuys nyny nyrb nyrf nysf nyss rbbb rbbr rbbs rbis rbss rib- ribs ribu riby riff rifs rifu riif riin riis rinf rinn riny riri rirs risi riss risu rius riyf rnbr rnin rrif rrrr rrun rsbi rsis rsnn rsnr rubb rubi rubs rubu ruby ruff ruif ruin ruis runf runi runn runs runy ruri rurs ruru rusi russ rusu rusy ruun ruyi ruys ryff ryif ryis rynn rysy ryun ryyf s-ib s-ii sbbs sbsi sbus sfnb sfss sfsu sibi sibs sibu siby siff sifr sifu sify sini sinn sins sinu siny sirf siri sirr sirs siru sisi siss sisu sisy siui sius siyi siyu snfu snib snir snns snrs snsy snub snur snus snys srby srfi srib sris srni srnn srub ssbn ssbr ssby ssin ssis ssns ssri ssrs sssb sssf sssi ssss sub- subb subi subs suf- suff sufi sufr sufs sufu suin suir suis sun- sunb suni sunn suns sunu suny sur- surf suri surn surr surs suru sury sus- susi suss susu susy suus suyi suyn suyr suyu syff syfy syis syn- syns synu syny syrs syry syss syun ubbi ubii ubir ubis uirr uni- unif unii unin unir unis unni unns unrf unrs uns- unus urbi urbs urff urfi urib urif urin uris uriu urni urns urri urry ursi urss ursu ursy urun urur urus uryn usbr usbs usfi usfs usif usin usis usnr usnu ussb ussf ussr usss ussu ussy usui usun usus uuni uuri uusi uuuu uuyn uyin uyir ybbs ybry yiff yins yirb yirn yirr yiss yrin yrun yryn ysby ysii yssu ysyb yubu yuff yufu yuin yuns yuny yuri yurn yury yuyu yyff yyyy

bbuss bibbs bibby bibin bibis bibri bibus biffi biffs biffy bifus binns binny binub birin birni birns birny