-ly b-u bbb bbl bbn bbs bbt bbu bby blb bll bln bls blt blu bly bnb bnl bnn bns bnt bnu bsb bsl bsn bss bst bsu bsy btb btl btn bts btt btu bty bub bul bun bus but buu buy by- byl byn bys byt byu lbb lbl lbs lbt lbu llb lll lln lls llt llu lly lnb lnl lnn lns lnt lnu lsb lsl lsn lss lst lsu ltb ltl lts ltt ltu lub lul lun lus lut luu luy lyl lyn lys lyt nbb nbl nbn nbs nbt nbu nlb nll nln nls nlt nlu nly nnb nnl nnn nns nnt nnu nsb nsl nsn nss nst nsu nsy ntb ntn nts ntt ntu nub nul nun nus nut nuu nuy nyl nyn nys nyt nyu nyy sbb sbl sbn sbs sbt sbu sby slb sll sln sls slt slu sly snb snl snn sns snt snu sny ss- ssb ssl ssn sss sst ssu stb stl stn sts stt stu sty sub sul sun sus sut suu suy sy- syb syl syn sys syt syu tbb tbl tbn tbs tbt tbu tll tln tls tlt tlu tnb tnl tnn tns tnt tsb tsl tsn tss tst tsu tsy ttb ttl ttn tts ttt ttu tty tub tul tun tus tut tuu tuy tyl tyn tys tyt ubb ubl ubn ubs ubt ubu uby ulb ull uln uls ult ulu uly un- unb unl unn uns unt unu uny usb usl usn uss ust usu utb utl utn uts utt utu uty uun uus uut uuu uys uyu ybl ybs yby yll yls ylt yly ynn yns ynu yny ysb ysl yss yst ysu ysy ytl ytn yts ytt ytu yul yun yus yut yuu yuy yyb yys yyt yyu yyy