a-a a-i a-t aaa aai aan aap aas aat ai- aia aii ain aip ais ait an- ana ani ann anp ans ant ap- apa api apn app aps apt as- asa asi asn asp ass ast at- ata ati atn atp ats att ia- iaa iai ian iap ias iat iia iii iin iip iis iit in- ina ini inn inp ins int ipa ipi ipn ipp ips ipt is- isa isi isn isp iss ist ita iti itn itp its itt n-i naa nai nan nap nas nat nia nii nin nip nis nit nna nni nnn nnp nns nnt npa npi npn npp nps npt nsa nsi nsn nsp nss nst nta nti ntn ntp nts ntt p-p paa pai pan pap pas pat pia pii pin pip pis pit pn- pna pni pnn pnp pns pnt ppa ppi ppn ppp pps ppt ps- psa psi psn psp pss pst pt- pta pti ptn ptp pts ptt saa sai san sap sas sat sia sii sin sip sis sit sna sni snn snp sns snt spa spi spn spp sps spt ss- ssa ssi ssn ssp sss sst sta sti stn stp sts stt taa tai tan tap tas tat tia tii tin tip tis tit tna tni tnn tnp tns tnt tpa tpi tpn tpp tps tpt tsa tsi tsn tsp tss tst tta tti ttn ttp tts ttt