b-u bbb bbn bbo bbr bbs bbt bbu bbw bnb bnn bno bnr bns bnt bnu bnw bob bon boo bor bos bot bou bow brb brn bro brr brs brt bru brw bsb bsn bso bsr bss bst bsu bsw btb btn bto btr bts btt btu btw bub bun buo bur bus but buu buw bwb bwo bwr bws bwu nbb nbn nbo nbr nbs nbt nbu nbw nnb nnn nno nns nnt nnu nnw no- nob non noo nor nos not nou now nrb nrn nro nrr nrs nrt nru nrw nsb nsn nso nsr nss nst nsu nsw ntb ntn nto ntr nts ntt ntu nub nun nuo nur nus nut nuu nwb nwn nwo nwr nws nwt nwu ob- obb obn obo obr obs obt obu obw on- onb onn ono onr ons ont onu oo- oob oon ooo oor oos oot oow or- orb orn oro orr ors ort oru os- osb osn oso osr oss ost osu osw ot- otb otn oto otr ots ott otu otw ou- oun ouo our ous out owb own owo ows owt owu oww rbb rbn rbo rbr rbs rbt rbu rbw rnb rnn rno rnr rns rnt rnu rnw rob ron roo ror ros rot rou row rrb rrn rrr rrs rrt rru rsb rsn rso rsr rss rst rsu rsw rtb rtn rto rtr rts rtt rtu rtw rub run ruo rur rus rut ruu rwb rwr rws rwu sbb sbn sbo sbr sbs sbt sbu sbw snb snn sno snr sns snt snu snw sob son soo sor sos sot sou sow sr- srb srn sro srr srs srt srw ss- ssb ssn sso ssr sss sst ssu ssw stb stn sto str sts stt stu stw sub sun suo sur sus sut suu suw swb swn swo swr sws swt swu tbb tbn tbo tbr tbs tbt tbu tnb tnn tno tnr tns tnt tnw to- tob ton too tor tos tot tou tow trb trn tro trr trs trt tru trw tsb tsn tso tsr tss tst tsu tsw ttb ttn tto ttr tts ttt ttu ttw tub tun tuo tur tus tut tuu twb twn two twr tws twt twu tww ubb ubn ubo ubr ubs ubt ubu ubw un- unb unn uno unr uns unt unu unw uob uon uoo uor uos uot uow ur- urb urn uro urr urs urt uru urw usb usn uso usr uss ust usu usw utb utn uto utr uts utt utu uun uur uus uut uuu uwb uwn uwr uws uww wbb wbn wbo wbr wbs wbt wbw wn- wnn wno wns wnt wnu wnw wob won woo wor wos wot wou wow wr- wrn wro wrr wrs wrt wru wrw wsb wsn wso wsr wss wst wsu wsw wtb wtn wto wtr wts wtt wtu wtw wub wun wuo wur wus wut wwn wwo wwt wwu www