a-a a-b a-i a-t aaa aab aad aaf aai aan aap aat ab- aba abb abd abf abi abn abp abt ad- ada adb add adf adi adn adp adt af- afa afb afd aff afi afn afp aft ai- aia aib aid aif aii ain aip ait an- ana anb and anf ani ann anp ant ap- apa apb apd apf api apn app apt at- ata atb atd atf ati atn atp att b-p baa bab bad baf bai ban bap bat bba bbb bbd bbf bbi bbn bbp bbt bda bdb bdd bdf bdi bdp bdt bfa bfb bfd bff bfi bfn bfp bft bi- bia bib bid bif bii bin bip bit bna bnb bnd bnf bni bnn bnp bnt bpa bpb bpd bpf bpi bpn bpp bpt bta btb btd btf bti btn btp btt daa dab dad daf dai dan dap dat dba dbb dbd dbf dbi dbn dbp dbt dda ddb ddd ddf ddi ddn ddp ddt dfa dfb dfd dff dfi dfn dfp dft di- dia dib did dif dii din dip dit dna dnb dnd dnf dni dnn dnp dnt dpa dpb dpd dpf dpi dpn dpp dpt dta dtb dtd dtf dti dtn dtp dtt faa fab fad faf fai fan fap fat fba fbb fbd fbf fbi fbn fbp fbt fda fdb fdd fdf fdi fdn fdp fdt ffa ffd fff ffi ffn ffp fft fia fib fid fif fii fin fip fit fna fnb fnd fnf fni fnn fnp fnt fpa fpb fpd fpi fpn fpp fpt fta ftb ftd ftf fti ftn ftp ftt i-d i-f ia- iaa iab iad iaf iai ian iap iat iba ibb ibd ibf ibi ibn ibp ibt ida idb idd idf idi idn idp idt ifa ifb ifd iff ifi ifn ifp ift iia iib iid iif iii iin iip iit in- ina inb ind inf ini inn inp int ipa ipb ipd ipf ipi ipn ipp ipt ita itb itd itf iti itn itp itt n-i naa nab nad naf nai nan nap nat nba nbb nbd nbf nbi nbn nbp nbt nda ndb ndd ndf ndi ndn ndp ndt nfa nfb nfd nff nfi nfn nfp nft nia nib nid nif nii nin nip nit nna nnb nnf nni nnn nnp nnt npa npb npd npf npi npn npp npt nta ntb ntd ntf nti ntn ntp ntt p-p paa pab pad paf pai pan pap pat pba pbb pbd pbf pbi pbn pbp pbt pda pdb pdd pdf pdi pdn pdp pdt pfa pfb pfd pff pfi pfn pfp pft pia pib pid pif pii pin pip pit pn- pna pnb pnd pnf pni pnn pnp pnt ppa ppb ppd ppf ppi ppn ppp ppt pt- pta ptb ptd ptf pti ptn ptp ptt taa tab tad taf tai tan tap tat tba tbb tbd tbf tbi tbn tbp tbt tda tdb tdd tdf tdi tdn tdp tdt tfa tfb tfd tff tfi tfn tfp tft tia tib tid tif tii tin tip tit tna tnb tnd tnf tni tnn tnp tnt tpa tpb tpd tpf tpi tpn tpp tpt tta ttb ttd ttf tti ttn ttp ttt