dddd ddps ddss ddts didi dids diii diis dipp dips dipt dis- disd disi disp diss dist diti dits ditt dpdt dpsd dpst dpts dsdp dsip dsps dspt dssi dssp dsst dsts dtdp dtss dttp idid idis idps idss idtp idts iiii iiis iiit iisd iisi iisp iist iitt ipdi ipid ipsi ipsp ipss ipts isds isis isit isps issi issp isss istd isti istp ists itis itsi itsp pdsd pdss pids piip pipi pipp pips pisd pisi piss pist piti pits pitt ppds ppid pppd pppp ppps ppss ppts pptt psdi psdp psds psid psip psis pspi pspp psps psst psts ptpd ptsd s-ii sdds sdps sdss sidd sidi sids siit sipi sipp sips sipt sisd sisi siss sist sit- sitd siti sits sitt spdp spdt spip spis spit sppd spps spsd spsp spss spst spts ssdd ssdp ssid ssis ssit ssps sspt sssi ssss sstd sstp ssts stds stid stip stis stit stpd stpp stps stsi stss sttd tdis tdss tidd tids tiit tip- tipi tipp tips tipt tisi tiss tist titi titp tits titt tppd tppp tptp tsid tsis tsps tspt tssi tsst tsts ttss tttt