cohoe ochoe chooe hcooe ohcoe hocoe coohe ocohe coohe ocohe ooche ooche chooe hcooe cohoe ochoe hocoe ohcoe ohoce hooce oohce oohce hooce ohoce coheo ocheo choeo hcoeo ohceo hoceo coeho oceho ceoho ecoho oecho eocho cheoo hceoo cehoo echoo hecoo ehcoo oheco hoeco oehco eohco heoco ehoco cooeh ocoeh cooeh ocoeh ooceh ooceh coeoh oceoh ceooh ecooh oecoh eocoh coeoh oceoh ceooh ecooh oecoh eocoh ooech ooech oeoch eooch oeoch eooch choeo hcoeo coheo ocheo hoceo ohceo cheoo hceoo cehoo echoo hecoo ehcoo coeho oceho ceoho ecoho oecho eocho hoeco oheco heoco ehoco oehco eohco ohoec hooec oohec oohec hooec ohoec oheoc hoeoc oehoc eohoc heooc ehooc ooehc ooehc oeohc eoohc oeohc eoohc hoeoc oheoc heooc ehooc oehoc eohoc
Note: these 'words' (valid or invalid) are all the permutations of the word cohoe. These words are obtained by scrambling the letters in cohoe.