dddd ddps ddss dfds dnus dpsd dpsu dsdp dspf dsps dssn dssp dudd duds dudu duff dufu dunn duns ffff ffps ffss ffun fndd fndn fnsp fnuf fspf fssf fssp fudd fuff fufu fund funf funs fusd fuss fusu n-up ndnp ndpd ndps ndsf ndss nfff nfps nfsu nnnn nnss nppd npss nsdf nsds nsfs nsps nssf nssp nsss nudd nuff nunn nuns nups nuss nusu pdfs pdns pdpn pdsd pdss pfff pfps pnpp pnup ppds pppd pppn pppp ppps ppsf ppss psdp psds psfs pspp psps puds pudu puff pund puns punu pups pupu pusd puss sdds sdps sdsf sdss sdsu sfpd sfss sfsu snfu snns snpp snsd snus spdf spdp spfs spns sppd sppf spps spsd spsp spss spud spun spus ssdd ssdf ssdp ssfp ssns sspf ssps sssf ssss sudd suds suf- suff sufs sufu sun- sund sunn suns sunu sup- supp sups sus- susd susp suss susu suus udds udpd udsd udun unds unfd unfp unns unps uns- unus updf upnp uppp uppu upup usdf usdp usds usfs usnu uspp usps ussf usss ussu usun usus uuuu