dddd ddps ddss ddts didi dids didy diii diis dipp dips dipt dis- disd disi disp diss dist disy diti dits ditt diyi dpdt dpsd dpst dpts dpty dpyd dpys dsdp dsip dsps dspt dssi dssp dsst dsts dtdp dtss dttp dydd dyit dys- dysi dysp dyss dyst dyt- dyty idid idis idps idss idtp idts iiii iiis iiit iisd iisi iisp iist iitt ipdi ipid ippy ipsi ipsp ipss ipts isds isis isit isps ispy issi issp isss issy istd isti istp ists isty isys itis itsi itsp itsy itty iypt pdsd pdss pids piip pipi pipp pips pipy pisd pisi piss pist pisy piti pits pitt pity piys ppds ppid pppd pppp ppps ppss ppts pptt psdi psdp psds psid psip psis pspi pspp psps psst psts psy- psys ptpd ptsd pypy pyss pyst pytt s-ii sdds sdps sdss sidd sidi sids sidy siit sipi sipp sips sipt sipy sisd sisi siss sist sisy sit- sitd siti sits sitt sity siyi spdp spdt spdy spip spis spit sppd spps spsd spsp spss spst spts spy- spys ssdd ssdp ssid ssis ssit ssps sspt sssi ssss sstd sstp ssts stds stid stip stis stit stpd stpp stps stsi stss sttd styd stys sydi syds syis syss syst sytt tdis tdss tidd tids tidy tiit tip- tipi tipp tips tipt tisi tiss tist titi titp tits titt tiyi tppd tppp tptp tsid tsis tsps tspt tssi tsst tsts tsys ttss tttt ttyd ttys tydd tydi tydy typ- typp typy tyss tyst tytd tyti tytt tyty ydyt yidi yids yips yiss yist yiti yitp ypsi ysii yspi yyyy