dddd ddps ddss ddts didi dids diii diis dili dill dils dipl dipp dips dipt dird dirl dirr dirs dirt dis- disd disi disp diss dist diti dits ditt dlii dlil dlis dlit dlrs dlst dpdt dpll dpls dpsd dpst dpts dril drip drit drrs drsp dsdp dsdr dsip dsls dsps dspt dsri dsrp dsrr dssi dssp dsst dsts dtdp dtpl dtrl dtss dttp idid idil idir idis idli idls idps idss idtp idts iiii iiis iiit iirs iisd iisi iisp iisr iist iitr iitt ilir ilis ilit ill- illd illi illp ills illt ilpr ilts ipdi ipid ipil ippr ipri ipsi ipsp ipss ipts irdp irds iri- irid iril irip iris irps irri irrs irsp irti irtp irts isds isil isis isit isls ispr isps isri isrp issi issp issr isss istd isti istp istr ists itil itis itll itri itrs itsi itsp lddp ldls ldrs lidl lids liii liir liis lili lill lils lilt lip- lipi lipl lipp lips lird liri lirl lirp lirr lirs lirt lisd lisi lisp liss list litd liti litl litr lits litt lldp llds llll llps lppl lprp lpss lrdd lrds lrps lrrr lrst lrts ls-r lsds lsid lspl lspr lssp lssr lsts ltds ltps ltrs ltsi ltsp ltsr lttr pdpr pdrs pdsd pdss pids piip pil- pild pili pill pils pilt pipi pipp pips piri pirl pirr pirs pisd pisi piss pist piti pitr pits pitt pldt plid plip plis plit plpp plri plsi plss pltt ppds ppid ppli pppd pppp ppps ppss ppts pptt pri- prid prii pris prlr prls prpd prps prrd prri prrs prsd prsi prsl prss prti prtp prtr psdi psdp psdr psds psid psil psip psis pspi pspp pspr psps psrd psrp psst psts ptld ptpd ptrd ptsd ridd ridi rids riis rill rilp ripd ripi ripl ripp ripr rips ript riri rirs risd risi risp riss rist riti ritl rits ritt rlds rldt rlls rpdp rpii rpls rpps rptd rpts rrrr rrsp rsdd rsdl rsds rsid rsis rslp rsps rssl rstp rsts rtdt rtls rtlt rtps rtss rttp rtts s-ii sdds sdls sdlt sdpr sdps sdrs sdsl sdss sidd sidi sidr sids siit sil- sild sili sill sils silt sipi sipp sips sipt siri sirp sirr sirs sirt sisd sisi siss sist sit- sitd siti sits sitt sl-i slds slid slip slir slit sllp slpi slpp slps slrp slrs slst slts spdl spdp spdr spdt spip spir spis spit splp splr spls sppd spps sprd spri sprs spsd spsp spss spst sptr spts sris srps srpt srsd srsp srtp srtr ssdd ssdp ssid ssis ssit sslp sslt sspl ssps sspt ssri ssrl ssrs sssi ssss sstd sstl sstp ssts stds stid stil stip stir stis stit stld stlt stpd stpp stps strd stri strs stsi stss sttd sttr tdil tdis tdls tdri tdss tidd tids tiit tild till tilr tils tilt tip- tipi tipp tips tipt tird tiri tirl tirr tirs tisi tiss tist titi titp tits titt tldp tldr tlli tlrs tpir tpld tpls tppd tppp tppr tprs tptp tptr tri- tril trip tris trit trpp trps trsd trsi trst trtr tsid tsis tsps tspt tssi tssr tsst tsts ttss tttt