helos ehlos hleos lheos elhos lehos heols ehols hoels ohels eohls oehls hloes lhoes holes ohles lohes olhes elohs leohs eolhs oelhs loehs olehs helso ehlso hleso lheso elhso lehso heslo ehslo hselo shelo eshlo sehlo hlseo lhseo hsleo shleo lsheo slheo elsho lesho eslho selho lseho sleho heosl ehosl hoesl ohesl eohsl oehsl hesol ehsol hseol sheol eshol sehol hosel ohsel hsoel shoel oshel sohel eoshl oeshl esohl seohl osehl soehl hlose lhose holse ohlse lohse olhse hlsoe lhsoe hsloe shloe lshoe slhoe hosle ohsle hsole shole oshle sohle loshe olshe lsohe slohe oslhe solhe elosh leosh eolsh oelsh loesh olesh elsoh lesoh esloh seloh lseoh sleoh eoslh oeslh esolh seolh oselh soelh loseh olseh lsoeh sloeh osleh soleh
Note: these 'words' (valid or invalid) are all the permutations of the word helos. These words are obtained by scrambling the letters in helos.