-ly b-u bbb bbl bbn bbr bbs bbt bbu bby blb bll bln blr bls blt blu bly bnb bnl bnn bnr bns bnt bnu brb brl brn brr brs brt bru bry bsb bsl bsn bsr bss bst bsu bsy btb btl btn btr bts btt btu bty bub bul bun bur bus but buu buy by- byl byn byr bys byt byu lbb lbl lbr lbs lbt lbu llb lll lln llr lls llt llu lly lnb lnl lnn lnr lns lnt lnu lrb lrn lrr lrs lrt lru lry lsb lsl lsn lsr lss lst lsu ltb ltl ltr lts ltt ltu lub lul lun lur lus lut luu luy lyl lyn lyr lys lyt nbb nbl nbn nbr nbs nbt nbu nlb nll nln nlr nls nlt nlu nly nnb nnl nnn nns nnt nnu nrb nrl nrn nrr nrs nrt nru nry nsb nsl nsn nsr nss nst nsu nsy ntb ntn ntr nts ntt ntu nub nul nun nur nus nut nuu nuy nyl nyn nys nyt nyu nyy rbb rbl rbn rbr rbs rbt rbu rll rln rlr rls rlt rlu rly rnb rnn rnr rns rnt rnu rny rrb rrl rrn rrr rrs rrt rru rsb rsl rsn rsr rss rst rsu rtb rtl rtn rtr rts rtt rtu rty rub run rur rus rut ruu ruy ry- ryn ryr rys ryu ryy sbb sbl sbn sbr sbs sbt sbu sby slb sll sln slr sls slt slu sly snb snl snn snr sns snt snu sny sr- srb srl srn srr srs srt sry ss- ssb ssl ssn ssr sss sst ssu stb stl stn str sts stt stu sty sub sul sun sur sus sut suu suy sy- syb syl syn syr sys syt syu tbb tbl tbn tbr tbs tbt tbu tll tln tlr tls tlt tlu tnb tnl tnn tnr tns tnt trb trl trn trr trs trt tru try tsb tsl tsn tsr tss tst tsu tsy ttb ttl ttn ttr tts ttt ttu tty tub tul tun tur tus tut tuu tuy tyl tyn tyr tys tyt ubb ubl ubn ubr ubs ubt ubu uby ulb ull uln ulr uls ult ulu uly un- unb unl unn unr uns unt unu uny ur- urb url urn urr urs urt uru ury usb usl usn usr uss ust usu utb utl utn utr uts utt utu uty uun uur uus uut uuu uys uyu ybl ybr ybs yby yll ylr yls ylt yly ynn yns ynu yny yrn yrs yrt yru ysb ysl ysr yss yst ysu ysy ytl ytn ytr yts ytt ytu yul yun yur yus yut yuu yuy yyb yys yyt yyu yyy