a-a a-b a-i a-t aaa aab aad aai aan aap aar aas aat ab- aba abb abd abi abn abp abr abs abt ad- ada adb add adi adn adp adr ads adt ai- aia aib aid aii ain aip air ais ait an- ana anb and ani ann anp anr ans ant ap- apa apb apd api apn app apr aps apt ar- ara arb ard ari arn arp arr ars art as- asa asb asd asi asn asp asr ass ast at- ata atb atd ati atn atp atr ats att b-p baa bab bad bai ban bap bar bas bat bba bbb bbd bbi bbn bbp bbr bbs bbt bda bdb bdd bdi bdp bdr bds bdt bi- bia bib bid bii bin bip bir bis bit bna bnb bnd bni bnn bnp bnr bns bnt bpa bpb bpd bpi bpn bpp bpr bps bpt bra brb brd bri brn brp brr brs brt bsa bsb bsd bsi bsn bsp bsr bss bst bta btb btd bti btn btp btr bts btt daa dab dad dai dan dap dar das dat dba dbb dbd dbi dbn dbp dbr dbs dbt dda ddb ddd ddi ddn ddp ddr dds ddt di- dia dib did dii din dip dir dis dit dna dnb dnd dni dnn dnp dnr dns dnt dpa dpb dpd dpi dpn dpp dpr dps dpt dra drb drd dri drn drp drr drs drt dsa dsb dsd dsi dsn dsp dsr dss dst dta dtb dtd dti dtn dtp dtr dts dtt i-d ia- iaa iab iad iai ian iap iar ias iat iba ibb ibd ibi ibn ibp ibr ibs ibt ida idb idd idi idn idp idr ids idt iia iib iid iii iin iip iir iis iit in- ina inb ind ini inn inp inr ins int ipa ipb ipd ipi ipn ipp ipr ips ipt ir- ira irb ird iri irn irp irr irs irt is- isa isb isd isi isn isp isr iss ist ita itb itd iti itn itp its itt n-i naa nab nad nai nan nap nar nas nat nba nbb nbd nbi nbn nbp nbr nbs nbt nda ndb ndd ndi ndn ndp ndr nds ndt nia nib nid nii nin nip nir nis nit nna nnb nni nnn nnp nns nnt npa npb npd npi npn npp npr nps npt nra nrb nrd nri nrn nrp nrr nrs nrt nsa nsb nsd nsi nsn nsp nsr nss nst nta ntb ntd nti ntn ntp ntr nts ntt p-p paa pab pad pai pan pap par pas pat pba pbb pbd pbi pbn pbp pbr pbs pbt pda pdb pdd pdi pdn pdp pdr pds pdt pia pib pid pii pin pip pir pis pit pn- pna pnb pnd pni pnn pnp pnr pns pnt ppa ppb ppd ppi ppn ppp ppr pps ppt pra prb prd pri prn prp prr prs prt ps- psa psb psd psi psn psp psr pss pst pt- pta ptb ptd pti ptn ptp ptr pts ptt ra- raa rab rad rai ran rap rar ras rat rba rbb rbd rbi rbn rbp rbr rbs rbt rda rdb rdd rdi rdn rdp rdr rds rdt ria rib rid rii rin rip rir ris rit rna rnb rnd rni rnn rnp rnr rns rnt rpa rpb rpd rpi rpn rpp rpr rps rpt rra rrb rrd rri rrn rrp rrr rrs rrt rsa rsb rsd rsi rsn rsp rsr rss rst rta rtb rtd rti rtn rtp rtr rts rtt saa sab sad sai san sap sar sas sat sba sbb sbd sbi sbn sbp sbr sbs sbt sda sdb sdd sdi sdn sdp sdr sds sdt sia sib sid sii sin sip sir sis sit sna snb snd sni snn snp snr sns snt spa spb spd spi spn spp spr sps spt sr- sra srb srd sri srn srp srr srs srt ss- ssa ssb ssd ssi ssn ssp ssr sss sst sta stb std sti stn stp str sts stt taa tab tad tai tan tap tar tas tat tba tbb tbd tbi tbn tbp tbr tbs tbt tda tdb tdd tdi tdn tdp tdr tds tdt tia tib tid tii tin tip tir tis tit tna tnb tnd tni tnn tnp tnr tns tnt tpa tpb tpd tpi tpn tpp tpr tps tpt tra trb trd tri trn trp trr trs trt tsa tsb tsd tsi tsn tsp tsr tss tst tta ttb ttd tti ttn ttp ttr tts ttt