dddd didi didu digg digi diii dipp dipt dipu dird dirr dirt diti ditt dpdt dprg drip drit drug drui drup drut druu dtdp dttp dudd dudu dugu duid duir duit durg duri durt duru dutp duur duut gdrt gggg gidd gidi gigg gigi gipi gipp gird girg giri girr girt giru giur gpgp gpip gprd gprp grid grig grip grit grrr grug grui grur grut gtip gudi gudu gugg gugi gugu guid gurd gurg guri gurr gurt guru guti gutt gutu idid idig idir idtp igri iiii iiit iitr iitt ipdi ipid ippr ipri ipur iput irdp iri- irid irig irip irri irti irtp itri itup itur iuiu iupp pdpr pgpu pgup pigg pigp pigt pigu piip pipi pipp pirg piri pirr piru piti pitr pitt pitu ppgi ppid ppig pppd pppp ppru pptt ppur pri- prid prig prii prpd prrd prri prti prtp prtr prud prut pruu ptpd ptrd ptui pudu pugu puid puig puir puit puiu pupi pupu pur- purg puri purp purr puru put- puti putt putu rgit rgtr ridd ridi rigg rigi rigu ripd ripi ripp ripr ript riri riti ritt ritu rpdp rpii rptd rrrr rtdt rttp rudd rudi rudp rugg rugi ruid ruit rupp rupt rurd ruri rurp ruru ruti rutt rutu ruud tdri tidd tigi tigr tiit tiiu tip- tipi tipp tipt tipu tird tiri tirr tiru titi titp titt titu tpdu tpir tppd tppp tppr tptp tptr tput tri- trig trip trit trpg trpp trtr trud trug trut truu tttt tudi tudu tugg tugu tuig tuit tuiu tupi tupu turd turg turi turp turr turt turu tuti tutt tutu u-rp uddi udid udig udir udpd uggt ugri ugur uguu uipi uirr uppp uppu upri upup urdu urgi urgu uriu urri urup urur urut utid utpd utri utti uttu utug uuri uuuu