dddd didi didu diii dili dill dipl dipp dipu dird dirl dirr dlii dlil dpll dril drip drui drup druu dudd dudu duid duil duir duli dull dulu duri duru duul duur idid idil idir idli iiii ilir ill- illd illi illp ilpr ilud ipdi ipid ipil ippr ipri ipur irdp iri- irid iril irip irri irul iuiu iupp lddp lidl liii liir lili lill lilu lip- lipi lipl lipp lipu lird liri lirl lirp lirr liru lldp llll llud lppl lprp lrdd lrpu lrrr ludd ludi luli lull lulu lupi lupu lurd luri luup pdpr piip pil- pild pili pill pilu pipi pipp piri pirl pirr piru plid plip plpp plri plud plup plur ppid ppli pppd pppp ppru ppur pri- prid prii prlr prpd prrd prri prud pruu pudu puid puir puiu puli pull pulp pulu pupi pupl pupu pur- puri purl purp purr puru ridd ridi rill rilp rilu ripd ripi ripl ripp ripr riri rpdp rpii rrrr rudd rudi rudl rudp ruid rull rupp rurd ruri rurp ruru ruud u-rp uddi udid udir udpd uipi uirr ulli ullr ulul uppp uppu upri upup urdu uriu urri urup urur uulu uuri uuuu