-al -ol a-a a-b aaa aab aal aam aan aao aar aas ab- aba abb abl abm abn abo abr abs al- ala alb all alm aln alo alr als ama amb aml amm amn amo amr ams an- ana anb anl anm ann ano anr ans aoa aob aol aom aon aoo aor aos ar- ara arb arl arm arn aro arr ars as- asa asb asl asm asn aso asr ass baa bab bal bam ban bao bar bas bba bbb bbl bbm bbn bbo bbr bbs bla blb bll blm bln blo blr bls bma bmb bml bmm bmn bmo bmr bms bna bnb bnl bnn bno bnr bns boa bob bol bom bon boo bor bos bra brb brl brm brn bro brr brs bsa bsb bsl bsm bsn bso bsr bss la- laa lab lal lam lan lao lar las lba lbb lbl lbm lbo lbr lbs lla llb lll llm lln llo llr lls lma lmb lml lmm lmn lmo lmr lms lna lnb lnl lnm lnn lno lnr lns loa lob lol lom lon loo lor los lra lrb lrm lrn lro lrr lrs lsa lsb lsl lsm lsn lso lsr lss m-o m-r maa mab mal mam man mao mar mas mba mbb mbl mbm mbo mbr mbs mla mlb mll mlm mln mlo mlr mls mma mmb mml mmm mmn mmo mmr mms mna mnb mnl mnm mnn mno mnr mns moa mob mol mom mon moo mor mos mra mrb mrl mrm mrn mro mrr mrs msa msb msl msm msn mso msr mss naa nab nal nam nan nao nar nas nba nbb nbl nbm nbn nbo nbr nbs nla nlb nll nlm nln nlo nlr nls nma nmb nml nmm nmn nmo nmr nms nna nnb nnl nnm nnn nno nns no- noa nob nol nom non noo nor nos nra nrb nrl nrm nrn nro nrr nrs nsa nsb nsl nsm nsn nso nsr nss oaa oab oal oam oan oao oar oas ob- oba obb obl obm obn obo obr obs ola olb oll olm oln olo ols om- oma omb oml omm omn omo omr oms on- ona onb onl onn ono onr ons oo- ooa oob ool oom oon ooo oor oos or- ora orb orl orm orn oro orr ors os- osa osb osl osm osn oso osr oss ra- raa rab ral ram ran rao rar ras rba rbb rbl rbm rbn rbo rbr rbs rla rll rlm rln rlo rlr rls rma rmb rml rmm rmn rmo rmr rms rna rnb rnm rnn rno rnr rns roa rob rol rom ron roo ror ros rra rrb rrl rrm rrn rrr rrs rsa rsb rsl rsm rsn rso rsr rss saa sab sal sam san sao sar sas sba sbb sbl sbm sbn sbo sbr sbs sla slb sll slm sln slo slr sls sma smb sml smm smn smo smr sms sna snb snl snm snn sno snr sns soa sob sol som son soo sor sos sr- sra srb srl srm srn sro srr srs ss- ssa ssb ssl ssm ssn sso ssr sss