helio ehlio hleio lheio elhio lehio heilo ehilo hielo ihelo eihlo iehlo hlieo lhieo hileo ihleo liheo ilheo eliho leiho eilho ielho lieho ileho heloi ehloi hleoi lheoi elhoi lehoi heoli eholi hoeli oheli eohli oehli hloei lhoei holei ohlei lohei olhei elohi leohi eolhi oelhi loehi olehi heiol ehiol hieol iheol eihol iehol heoil ehoil hoeil oheil eohil oehil hioel ihoel hoiel ohiel iohel oihel eiohl ieohl eoihl oeihl ioehl oiehl hlioe lhioe hiloe ihloe lihoe ilhoe hloie lhoie holie ohlie lohie olhie hiole ihole hoile ohile iohle oihle liohe ilohe loihe olihe iolhe oilhe elioh leioh eiloh ieloh lieoh ileoh eloih leoih eolih oelih loeih oleih eiolh ieolh eoilh oeilh ioelh oielh lioeh iloeh loieh olieh ioleh oileh
Note: these 'words' (valid or invalid) are all the permutations of the word helio. These words are obtained by scrambling the letters in helio.