dddd ddps ddss didi dids didu diii diis dili dill dils dipl dipp dips dipu dird dirl dirr dirs dis- disd disi disp diss dius dlii dlil dlis dlrs dpll dpls dpsd dpsu dril drip drrs drsp drui drup drus druu dsdp dsdr dsip dsls dsps dsri dsrp dsrr dssi dssp dudd duds dudu duid duil duir duis duli dull dulu duri duru dusi duul duur idid idil idir idis idli idls idps idss idus iiii iiis iirs iisd iisi iisp iisr iisu ilir ilis ill- illd illi illp ills ilpr ilud ilus ipdi ipid ipil ippr ipri ipsi ipsp ipss ipur ipus irdp irds iri- irid iril irip iris irps irri irrs irsp irul irus isds isil isis isls ispr isps isri isrp issi issp issr isss issu isup isus iuds iuiu iupp iusd iuss lddp ldls ldrs lidl lids liii liir liis lili lill lils lilu lip- lipi lipl lipp lips lipu lird liri lirl lirp lirr lirs liru lisd lisi lisp liss lisu lius lldp llds llll llps llud lppl lprp lpss lrdd lrds lrps lrpu lrrr ls-r lsds lsid lspl lspr lssp lssr ludd ludi luis luli lull lulu lupi lupu lurd luri lurs lusi luss luup pdpr pdrs pdsd pdss pids piip pil- pild pili pill pils pilu pipi pipp pips piri pirl pirr pirs piru pisd pisi piss pisu pius plid plip plis plpp plri plsi plss plud plup plur plus ppds ppid ppli pppd pppp ppps ppru ppss ppur pri- prid prii pris prlr prls prpd prps prrd prri prrs prsd prsi prsl prss prud prus pruu psdi psdp psdr psds psid psil psip psis pspi pspp pspr psps psrd psrp puds pudu puid puir puis puiu puli pull pulp puls pulu pupi pupl pups pupu pur- puri purl purp purr purs puru pusd pusi puss ridd ridi rids riis rill rilp rilu ripd ripi ripl ripp ripr rips riri rirs risd risi risp riss risu rius rlds rlls rpdp rpii rpls rpps rrrr rrsp rsdd rsdl rsds rsid rsis rslp rsps rssl rudd rudi rudl rudp ruds ruid ruis rull rupp rurd ruri rurp rurs ruru rusi russ rusu ruud s-ii sdds sdls sdpr sdps sdrs sdsl sdss sdsu sidd sidi sidr sids sil- sild sili sill sils silu sipi sipp sips siri sirp sirr sirs siru sisd sisi siss sisu siui sius sl-i slds slid slip slir sllp slpi slpp slps slrp slrs slsu slud slup slur spdl spdp spdr spip spir spis splp splr spls sppd spps sprd spri sprs spsd spsp spss spud spui spur spus sris srps srsd srsp ssdd ssdp ssid ssis sslp sspl ssps ssri ssrl ssrs sssi ssss sudd sudi suds suid suir suis sul- suld suli sull sulp sulu sup- supp supr sups sur- surd suri surp surr surs suru sus- susd susi susp suss susu suus u-rp uddi udds udid udir udpd udsd udsl uipi uirr uisd ulli ullr ulul ulus upis uppp uppu upri upsi upup urds urdu uris uriu urls urri ursi urss ursu urup urur urus usdl usdp usds usip usis uslp uslu uspp usps ussr usss ussu usui usul usus uulu uuri uusi uuuu