-al a-a a-b a-t aaa aab aad aal aan aap aas aat ab- aba abb abd abl abn abp abs abt ad- ada adb add adl adn adp ads adt al- ala alb ald all aln alp als alt an- ana anb and anl ann anp ans ant ap- apa apb apd apl apn app aps apt as- asa asb asd asl asn asp ass ast at- ata atb atd atl atn atp ats att b-p baa bab bad bal ban bap bas bat bba bbb bbd bbl bbn bbp bbs bbt bda bdb bdd bdl bdp bds bdt bla blb bld bll bln blp bls blt bna bnb bnd bnl bnn bnp bns bnt bpa bpb bpd bpl bpn bpp bps bpt bsa bsb bsd bsl bsn bsp bss bst bta btb btd btl btn btp bts btt daa dab dad dal dan dap das dat dba dbb dbd dbl dbn dbp dbs dbt dda ddb ddd ddl ddn ddp dds ddt dl- dla dlb dld dll dlp dls dlt dna dnb dnd dnl dnn dnp dns dnt dpa dpb dpd dpl dpn dpp dps dpt dsa dsb dsd dsl dsn dsp dss dst dta dtb dtd dtl dtn dtp dts dtt l-p la- laa lab lad lal lan lap las lat lba lbb lbd lbl lbp lbs lbt lda ldb ldd ldl ldn ldp lds ldt lla llb lld lll lln llp lls llt lna lnb lnd lnl lnn lnp lns lnt lpa lpb lpd lpl lpn lpp lps lpt lsa lsb lsd lsl lsn lsp lss lst lta ltb ltd ltl ltp lts ltt naa nab nad nal nan nap nas nat nba nbb nbd nbl nbn nbp nbs nbt nda ndb ndd ndl ndn ndp nds ndt nla nlb nld nll nln nlp nls nlt nna nnb nnl nnn nnp nns nnt npa npb npd npl npn npp nps npt nsa nsb nsd nsl nsn nsp nss nst nta ntb ntd ntn ntp nts ntt p-p paa pab pad pal pan pap pas pat pba pbb pbd pbl pbn pbp pbs pbt pda pdb pdd pdl pdn pdp pds pdt pla plb pld pll pln plp pls plt pn- pna pnb pnd pnl pnn pnp pns pnt ppa ppb ppd ppl ppn ppp pps ppt ps- psa psb psd psl psn psp pss pst pt- pta ptb ptd ptl ptn ptp pts ptt saa sab sad sal san sap sas sat sba sbb sbd sbl sbn sbp sbs sbt sda sdb sdd sdl sdn sdp sds sdt sla slb sld sll sln slp sls slt sna snb snd snl snn snp sns snt spa spb spd spl spn spp sps spt ss- ssa ssb ssd ssl ssn ssp sss sst sta stb std stl stn stp sts stt taa tab tad tal tan tap tas tat tba tbb tbd tbl tbn tbp tbs tbt tda tdb tdd tdl tdn tdp tds tdt tla tld tll tln tlp tls tlt tna tnb tnd tnl tnn tnp tns tnt tpa tpb tpd tpl tpn tpp tps tpt tsa tsb tsd tsl tsn tsp tss tst tta ttb ttd ttl ttn ttp tts ttt