-al a-a a-b a-i aaa aab aai aal aan aap aar aas ab- aba abb abi abl abn abp abr abs ai- aia aib aii ail ain aip air ais al- ala alb ali all aln alp alr als an- ana anb ani anl ann anp anr ans ap- apa apb api apl apn app apr aps ar- ara arb ari arl arn arp arr ars as- asa asb asi asl asn asp asr ass b-p baa bab bai bal ban bap bar bas bba bbb bbi bbl bbn bbp bbr bbs bi- bia bib bii bil bin bip bir bis bla blb bli bll bln blp blr bls bna bnb bni bnl bnn bnp bnr bns bpa bpb bpi bpl bpn bpp bpr bps bra brb bri brl brn brp brr brs bsa bsb bsi bsl bsn bsp bsr bss ia- iaa iab iai ial ian iap iar ias iba ibb ibi ibl ibn ibp ibr ibs iia iib iii iil iin iip iir iis il- ila ilb ili ill iln ilp ilr ils in- ina inb ini inl inn inp inr ins ipa ipb ipi ipl ipn ipp ipr ips ir- ira irb iri irl irn irp irr irs is- isa isb isi isl isn isp isr iss l-p la- laa lab lai lal lan lap lar las lba lbb lbi lbl lbp lbr lbs lia lib lii lil lin lip lir lis lla llb lli lll lln llp llr lls lna lnb lni lnl lnn lnp lnr lns lpa lpb lpi lpl lpn lpp lpr lps lra lrb lri lrn lrp lrr lrs lsa lsb lsi lsl lsn lsp lsr lss n-i naa nab nai nal nan nap nar nas nba nbb nbi nbl nbn nbp nbr nbs nia nib nii nil nin nip nir nis nla nlb nli nll nln nlp nlr nls nna nnb nni nnl nnn nnp nns npa npb npi npl npn npp npr nps nra nrb nri nrl nrn nrp nrr nrs nsa nsb nsi nsl nsn nsp nsr nss p-p paa pab pai pal pan pap par pas pba pbb pbi pbl pbn pbp pbr pbs pia pib pii pil pin pip pir pis pla plb pli pll pln plp plr pls pn- pna pnb pni pnl pnn pnp pnr pns ppa ppb ppi ppl ppn ppp ppr pps pra prb pri prl prn prp prr prs ps- psa psb psi psl psn psp psr pss ra- raa rab rai ral ran rap rar ras rba rbb rbi rbl rbn rbp rbr rbs ria rib rii ril rin rip rir ris rla rli rll rln rlp rlr rls rna rnb rni rnn rnp rnr rns rpa rpb rpi rpl rpn rpp rpr rps rra rrb rri rrl rrn rrp rrr rrs rsa rsb rsi rsl rsn rsp rsr rss saa sab sai sal san sap sar sas sba sbb sbi sbl sbn sbp sbr sbs sia sib sii sil sin sip sir sis sla slb sli sll sln slp slr sls sna snb sni snl snn snp snr sns spa spb spi spl spn spp spr sps sr- sra srb sri srl srn srp srr srs ss- ssa ssb ssi ssl ssn ssp ssr sss