-al -ol a-a a-b aaa aab aal aam aan aao aap aar ab- aba abb abl abm abn abo abp abr al- ala alb all alm aln alo alp alr ama amb aml amm amn amo amp amr an- ana anb anl anm ann ano anp anr aoa aob aol aom aon aoo aop aor ap- apa apb apl apm apn apo app apr ar- ara arb arl arm arn aro arp arr b-p baa bab bal bam ban bao bap bar bba bbb bbl bbm bbn bbo bbp bbr bla blb bll blm bln blo blp blr bma bmb bml bmm bmn bmo bmp bmr bna bnb bnl bnn bno bnp bnr boa bob bol bom bon boo bop bor bpa bpb bpl bpm bpn bpo bpp bpr bra brb brl brm brn bro brp brr l-p la- laa lab lal lam lan lao lap lar lba lbb lbl lbm lbo lbp lbr lla llb lll llm lln llo llp llr lma lmb lml lmm lmn lmo lmp lmr lna lnb lnl lnm lnn lno lnp lnr loa lob lol lom lon loo lop lor lpa lpb lpl lpm lpn lpo lpp lpr lra lrb lrm lrn lro lrp lrr m-o m-r maa mab mal mam man mao map mar mba mbb mbl mbm mbo mbp mbr mla mlb mll mlm mln mlo mlp mlr mma mmb mml mmm mmn mmo mmp mmr mna mnb mnl mnm mnn mno mnp mnr moa mob mol mom mon moo mop mor mpa mpb mpl mpm mpn mpo mpp mpr mra mrb mrl mrm mrn mro mrp mrr naa nab nal nam nan nao nap nar nba nbb nbl nbm nbn nbo nbp nbr nla nlb nll nlm nln nlo nlp nlr nma nmb nml nmm nmn nmo nmp nmr nna nnb nnl nnm nnn nno nnp no- noa nob nol nom non noo nop nor npa npb npl npm npn npo npp npr nra nrb nrl nrm nrn nro nrp nrr oaa oab oal oam oan oao oap oar ob- oba obb obl obm obn obo obp obr ola olb oll olm oln olo olp om- oma omb oml omm omn omo omp omr on- ona onb onl onn ono onp onr oo- ooa oob ool oom oon ooo oop oor op- opa opb opl opm opn opo opp opr or- ora orb orl orm orn oro orp orr p-p paa pab pal pam pan pao pap par pba pbb pbl pbm pbn pbo pbp pbr pla plb pll plm pln plo plp plr pma pmb pml pmm pmn pmo pmp pmr pn- pna pnb pnl pnm pnn pno pnp pnr poa pob pol pom pon poo pop por ppa ppb ppl ppm ppn ppo ppp ppr pra prb prl prm prn pro prp prr ra- raa rab ral ram ran rao rap rar rba rbb rbl rbm rbn rbo rbp rbr rla rll rlm rln rlo rlp rlr rma rmb rml rmm rmn rmo rmp rmr rna rnb rnm rnn rno rnp rnr roa rob rol rom ron roo rop ror rpa rpb rpl rpm rpn rpo rpp rpr rra rrb rrl rrm rrn rrp rrr