b-u bbb bbf bbi bbn bbo bbr bbs bbu bfb bff bfi bfn bfo bfr bfs bfu bi- bib bif bii bin bio bir bis biu bnb bnf bni bnn bno bnr bns bnu bob bof boi bon boo bor bos bou brb brf bri brn bro brr brs bru bsb bsf bsi bsn bso bsr bss bsu bub buf bui bun buo bur bus buu fbb fbf fbi fbn fbo fbr fbs fbu fff ffi ffn ffo ffr ffs ffu fib fif fii fin fir fis fiu fnb fnf fni fnn fnr fns fnu fob fof foi fon foo for fos fou frb frf fri frn fro frr frs fru fsb fsf fsi fsn fso fsr fss fsu fub fuf fui fun fuo fur fus fuu i-f ibb ibf ibi ibn ibo ibr ibs ibu ifb iff ifi ifn ifo ifr ifs ifu iib iif iii iin iio iir iis iiu in- inb inf ini inn ino inr ins inu io- iob iof ioi ion ioo ior ios iou ir- irb irf iri irn iro irr irs iru is- isb isf isi isn iso isr iss isu iu- iub iui iur ius n-i nbb nbf nbi nbn nbo nbr nbs nbu nfb nff nfi nfn nfo nfr nfs nfu nib nif nii nin nio nir nis niu nnb nnf nni nnn nno nns nnu no- nob nof noi non noo nor nos nou nrb nrf nri nrn nro nrr nrs nru nsb nsf nsi nsn nso nsr nss nsu nub nui nun nuo nur nus nuu o-i ob- obb obf obi obn obo obr obs obu of- ofb off ofi ofn ofo ofr ofs ofu oib oif oii oin oio oir ois oiu on- onb onf oni onn ono onr ons onu oo- oob oof ooi oon ooo oor oos or- orb orf ori orn oro orr ors oru os- osb osf osi osn oso osr oss osu ou- ouf oui oun ouo our ous rbb rbf rbi rbn rbo rbr rbs rbu rfb rff rfi rfn rfo rfr rfs rfu rib rif rii rin rio rir ris rnb rni rnn rno rnr rns rnu rob rof roi ron roo ror ros rou rrb rrf rri rrn rrr rrs rru rsb rsf rsi rsn rso rsr rss rsu rub ruf rui run ruo rur rus ruu sbb sbf sbi sbn sbo sbr sbs sbu sfb sff sfi sfn sfo sfr sfs sfu sib sif sii sin sio sir sis siu snb snf sni snn sno snr sns snu sob sof soi son soo sor sos sou sr- srb srf sri srn sro srr srs ss- ssb ssf ssi ssn sso ssr sss ssu sub suf sui sun suo sur sus suu ubb ubf ubi ubn ubo ubr ubs ubu uff ufi ufn ufo ufr ufs ufu uib uif uii uin uio uir uis uiu un- unb unf uni unn uno unr uns unu uob uon uoo uor uos ur- urb urf uri urn uro urr urs uru usb usf usi usn uso usr uss usu uun uur uus uuu

-ous bbbb bbbs bbfn bbin bffs bfsi bfsr bibb bibi bibo bibs biff bifi biin biis bin- bini binn bino bins binu bio- bioi bion bios biou birb biri birn biro birr birs biru bis- biso biss bisu bnib bnin bnor bnrr bnss bobb bobi bobo bobs bobu boff bofs bofu boi- boii boin bois boiu boni bonn bono bons bonu boob boof boon boor boos bor- borf bori born boro borr bors boru bosi bosn boso boss bosu bouf boun bour bous brfu brin brio bris brno brns brob bron broo bror bros brou brrr brrs brsb brsr brun brus bsff bsfs bsin bsns bson bsos bubb bubi bubo bubs bubu buff bufo bufr buif buin buir buis buiu bunb buni bunn buno buns bunu buon bur- burb buri burn buro burr burs buru busi buss busu buus fbis fbrs fbus ffff ffii ffrr ffss ffun fibs fiff fifi fifo fiii fini finn fino fins fion fior fios firn firs fisi fiss fisu fnrs fnuf fobs fofo foin fois fono fons foof foon foos for- forb fori forn foro forr fors fosb fosi foso foss foun four fous frib frin frio fris frns frob fron fros frou frsb frso frub frun fsfi fsfo fssf fubb fubs fubu fuff fufu fuir funf funs fuor fur- furi furn furo furr furs fusi fuso fuss fusu i-no ibfi ibis ibns ibon ibos ibri ibro ibsf ibsn ibss ibus ifbb ifis ifni ifno ifnr ifns ifor ifrb ifrf ifri ifsb ifso iiii iiio iiis iino iioi iioo iios iirs iisi iisr iisu inbo infi info infs inis inni inno innr inns innu ino- inoi inon inor inos inou inri inro inrs inso inss insu inui inun inus iobi ioii ioio ioni ionn iono ions ioof iooi iooo ioos iori iors ioso iosu ioun ious irfu iri- irin irio iris irob iron irri irrs irsf irun irus isbn isin isis isno iso- isof ison isor isos isri issf issi isso issr isss issu isus iuiu iuno iuss n-ii nbbo nbuf nfff nfib nfon nfrs nfsr nfsu nibi nibo nibs niff niir niiu nini nino nins nion nioo nios niou niro nirs niru nisi niso niss nisu niur nnnn nnos nnss nobi nobo nobs nobu nofi noib noif noin noio noir nois non- noni nonn nono nons nonu noo- noob noon nooo noor noos nor- norb norf nori norn noro norr nors nos- noss nosu noun nour nous nron nsbo nsfs nsin nsis nsnr nsof nsos nsou nssb nssf nsso nssr nsss nsub nubi nubs nuff nuin nunn nuno nuns nuon nuri nurn nurr nurs nuru nusi nuss nusu obbo obin obis oboi obon obor obos obri obro obsn obsr obss obus off- offo offr offs offu ofno ofor ofus oiii oins oion oios oisu onir onis onni onno onon onor onos onso onur onus oobi ooff oofs oons oooo ooos oosi oous orbb orbi orbo orbs orbu orff orfi orfs orfu ori- orif orin