heayr ehayr haeyr aheyr eahyr aehyr heyar ehyar hyear yhear eyhar yehar hayer ahyer hyaer yhaer ayher yaher eayhr aeyhr eyahr yeahr ayehr yaehr heary ehary haery ahery eahry aehry heray ehray hreay rheay erhay rehay harey ahrey hraey rhaey arhey rahey earhy aerhy erahy reahy arehy raehy heyra ehyra hyera yhera eyhra yehra herya ehrya hreya rheya erhya rehya hyrea yhrea hryea rhyea yrhea ryhea eyrha yerha eryha reyha yreha ryeha hayre ahyre hyare yhare ayhre yahre harye ahrye hraye rhaye arhye rahye hyrae yhrae hryae rhyae yrhae ryhae ayrhe yarhe aryhe rayhe yrahe ryahe eayrh aeyrh eyarh yearh ayerh yaerh earyh aeryh erayh reayh areyh raeyh eyrah yerah eryah reyah yreah ryeah ayreh yareh aryeh rayeh yraeh ryaeh
Note: these 'words' (valid or invalid) are all the permutations of the word heayr. These words are obtained by scrambling the letters in heayr.