siped isped spied psied ipsed pised siepd isepd seipd esipd iespd eispd speid pseid sepid espid pesid epsid ipesd piesd iepsd eipsd peisd episd sipde ispde spide pside ipsde pisde sidpe isdpe sdipe dsipe idspe dispe spdie psdie sdpie dspie pdsie dpsie ipdse pidse idpse dipse pdise dpise siedp isedp seidp esidp iesdp eisdp sidep isdep sdiep dsiep idsep disep sedip esdip sdeip dseip edsip desip iedsp eidsp idesp diesp edisp deisp spedi psedi sepdi espdi pesdi epsdi spdei psdei sdpei dspei pdsei dpsei sedpi esdpi sdepi dsepi edspi despi pedsi epdsi pdesi dpesi edpsi depsi ipeds pieds iepds eipds peids epids ipdes pides idpes dipes pdies dpies iedps eidps ideps dieps edips deips pedis epdis pdeis dpeis edpis depis
Note: these 'words' (valid or invalid) are all the permutations of the word siped. These words are obtained by scrambling the letters in siped.