-al a-a a-b aaa aab aad aal aam aan aas ab- aba abb abd abl abm abn abs ad- ada adb add adl adm adn ads al- ala alb ald all alm aln als ama amb amd aml amm amn ams an- ana anb and anl anm ann ans as- asa asb asd asl asm asn ass baa bab bad bal bam ban bas bba bbb bbd bbl bbm bbn bbs bda bdb bdd bdl bdm bds bla blb bld bll blm bln bls bma bmb bmd bml bmm bmn bms bna bnb bnd bnl bnn bns bsa bsb bsd bsl bsm bsn bss daa dab dad dal dam dan das dba dbb dbd dbl dbm dbn dbs dda ddb ddd ddl ddm ddn dds dl- dla dlb dld dll dlm dls dma dmb dmd dml dmm dmn dms dna dnb dnd dnl dnm dnn dns dsa dsb dsd dsl dsm dsn dss la- laa lab lad lal lam lan las lba lbb lbd lbl lbm lbs lda ldb ldd ldl ldm ldn lds lla llb lld lll llm lln lls lma lmb lmd lml lmm lmn lms lna lnb lnd lnl lnm lnn lns lsa lsb lsd lsl lsm lsn lss maa mab mad mal mam man mas mba mbb mbd mbl mbm mbs mda mdb mdd mdl mdm mdn mds mla mlb mld mll mlm mln mls mma mmb mmd mml mmm mmn mms mna mnb mnl mnm mnn mns msa msb msd msl msm msn mss naa nab nad nal nam nan nas nba nbb nbd nbl nbm nbn nbs nda ndb ndd ndl ndm ndn nds nla nlb nld nll nlm nln nls nma nmb nmd nml nmm nmn nms nna nnb nnl nnm nnn nns nsa nsb nsd nsl nsm nsn nss saa sab sad sal sam san sas sba sbb sbd sbl sbm sbn sbs sda sdb sdd sdl sdm sdn sds sla slb sld sll slm sln sls sma smb smd sml smm smn sms sna snb snd snl snm snn sns ss- ssa ssb ssd ssl ssm ssn sss