shero hsero sehro eshro hesro ehsro shreo hsreo srheo rsheo hrseo rhseo serho esrho sreho rseho ersho resho herso ehrso hreso rheso erhso rehso sheor hseor sehor eshor hesor ehsor shoer hsoer soher osher hoser ohser seohr esohr soehr osehr eoshr oeshr heosr ehosr hoesr ohesr eohsr oehsr shroe hsroe srhoe rshoe hrsoe rhsoe shore hsore sohre oshre hosre ohsre srohe rsohe sorhe osrhe roshe orshe hrose rhose horse ohrse rohse orhse seroh esroh sreoh rseoh ersoh resoh seorh esorh soerh oserh eosrh oesrh sroeh rsoeh soreh osreh roseh orseh erosh reosh eorsh oersh roesh oresh heros ehros hreos rheos erhos rehos heors ehors hoers ohers eohrs oehrs hroes rhoes hores ohres rohes orhes erohs reohs eorhs oerhs roehs orehs
Note: these 'words' (valid or invalid) are all the permutations of the word shero. These words are obtained by scrambling the letters in shero.