dddd ddps ddry ddss didi dids didy diii diis dipp dips dird dirr dirs dis- disd disi disp diss disy diyi dpsd dpyd dpys drip drrs drsp dry- drys dsdp dsdr dsip dsps dsri dsrp dsrr dssi dssp dydd dyr- dyri dys- dysi dysp dysr dyss dyyr idid idir idis idps idss iiii iiis iirs iisd iisi iisp iisr ipdi ipid ippr ippy ipri ipsi ipsp ipss irdp irds iri- irid irip iris iriy irps irri irrs irsp isds isis ispr isps ispy isri isrp issi issp issr isss issy isys pdpr pdrs pdsd pdss pids piip pipi pipp pips pipy piri pirr pirs piry pisd pisi piss pisy piys ppds ppid pppd pppp ppps ppss pri- prid prii pris prpd prps prrd prri prrs prsd prsi prss prys psdi psdp psdr psds psid psip psis pspi pspp pspr psps psrd psrp psy- psys pypy pyr- pyri pyry pyss ridd ridi rids riis ripd ripi ripp ripr rips riri rirs risd risi risp riss rpdp rpii rpps rrrr rrsp rsdd rsds rsid rsis rsps rydy ryip ryis rysy s-ii sdds sdpr sdps sdrs sdry sdss sidd sidi sidr sids sidy sipi sipp sips sipy siri sirp sirr sirs sisd sisi siss sisy siyi spdp spdr spdy spip spir spis sppd spps sprd spri sprs spry spsd spsp spss spy- spyr spys sris srps srsd srsp ssdd ssdp ssid ssis ssps ssri ssrs sssi ssss sydi syds syis syrs syry syss yidi yids yips yird yirr yiss ypir ypsi ysii yspi yyyy