-al a-a a-b a-i aaa aab aai aal aan aap aas ab- aba abb abi abl abn abp abs ai- aia aib aii ail ain aip ais al- ala alb ali all aln alp als an- ana anb ani anl ann anp ans ap- apa apb api apl apn app aps as- asa asb asi asl asn asp ass b-p baa bab bai bal ban bap bas bba bbb bbi bbl bbn bbp bbs bi- bia bib bii bil bin bip bis bla blb bli bll bln blp bls bna bnb bni bnl bnn bnp bns bpa bpb bpi bpl bpn bpp bps bsa bsb bsi bsl bsn bsp bss ia- iaa iab iai ial ian iap ias iba ibb ibi ibl ibn ibp ibs iia iib iii iil iin iip iis il- ila ilb ili ill iln ilp ils in- ina inb ini inl inn inp ins ipa ipb ipi ipl ipn ipp ips is- isa isb isi isl isn isp iss l-p la- laa lab lai lal lan lap las lba lbb lbi lbl lbp lbs lia lib lii lil lin lip lis lla llb lli lll lln llp lls lna lnb lni lnl lnn lnp lns lpa lpb lpi lpl lpn lpp lps lsa lsb lsi lsl lsn lsp lss n-i naa nab nai nal nan nap nas nba nbb nbi nbl nbn nbp nbs nia nib nii nil nin nip nis nla nlb nli nll nln nlp nls nna nnb nni nnl nnn nnp nns npa npb npi npl npn npp nps nsa nsb nsi nsl nsn nsp nss p-p paa pab pai pal pan pap pas pba pbb pbi pbl pbn pbp pbs pia pib pii pil pin pip pis pla plb pli pll pln plp pls pn- pna pnb pni pnl pnn pnp pns ppa ppb ppi ppl ppn ppp pps ps- psa psb psi psl psn psp pss saa sab sai sal san sap sas sba sbb sbi sbl sbn sbp sbs sia sib sii sil sin sip sis sla slb sli sll sln slp sls sna snb sni snl snn snp sns spa spb spi spl spn spp sps ss- ssa ssb ssi ssl ssn ssp sss