dddd ddps ddss dpll dpls dpsd dpsu dsdp dsls dsps dssp dudd duds dudu dull dulu duul lddp ldls lldp llds llll llps llud lppl lpss lsds lspl lssp ludd lull lulu lupu luss luup pdsd pdss plpp plss plud plup plus ppds pppd pppp ppps ppss psdp psds pspp psps puds pudu pull pulp puls pulu pupl pups pupu pusd puss sdds sdls sdps sdsl sdss sdsu slds sllp slpp slps slsu slud slup spdl spdp splp spls sppd spps spsd spsp spss spud spus ssdd ssdp sslp sspl ssps ssss sudd suds sul- suld sull sulp sulu sup- supp sups sus- susd susp suss susu suus udds udpd udsd udsl ulul ulus uppp uppu upup usdl usdp usds uslp uslu uspp usps usss ussu usul usus uulu uuuu