a-a a-i a-t aaa aaf aai aan aap aat af- afa aff afi afn afp aft ai- aia aif aii ain aip ait an- ana anf ani ann anp ant ap- apa apf api apn app apt at- ata atf ati atn atp att faa faf fai fan fap fat ffa fff ffi ffn ffp fft fia fif fii fin fip fit fna fnf fni fnn fnp fnt fpa fpi fpn fpp fpt fta ftf fti ftn ftp ftt i-f ia- iaa iaf iai ian iap iat ifa iff ifi ifn ifp ift iia iif iii iin iip iit in- ina inf ini inn inp int ipa ipf ipi ipn ipp ipt ita itf iti itn itp itt n-i naa naf nai nan nap nat nfa nff nfi nfn nfp nft nia nif nii nin nip nit nna nnf nni nnn nnp nnt npa npf npi npn npp npt nta ntf nti ntn ntp ntt p-p paa paf pai pan pap pat pfa pff pfi pfn pfp pft pia pif pii pin pip pit pn- pna pnf pni pnn pnp pnt ppa ppf ppi ppn ppp ppt pt- pta ptf pti ptn ptp ptt taa taf tai tan tap tat tfa tff tfi tfn tfp tft tia tif tii tin tip tit tna tnf tni tnn tnp tnt tpa tpf tpi tpn tpp tpt tta ttf tti ttn ttp ttt