oshac sohac ohsac hosac shoac hsoac osahc soahc oashc aoshc saohc asohc ohasc hoasc oahsc aohsc haosc ahosc shaoc hsaoc sahoc ashoc hasoc ahsoc oshca sohca ohsca hosca shoca hsoca oscha socha ocsha cosha scoha csoha ohcsa hocsa ochsa cohsa hcosa chosa shcoa hscoa schoa cshoa hcsoa chsoa osach soach oasch aosch saoch asoch oscah socah ocsah cosah scoah csoah oacsh aocsh ocash coash acosh caosh sacoh ascoh scaoh csaoh acsoh casoh ohacs hoacs oahcs aohcs haocs ahocs ohcas hocas ochas cohas hcoas choas oachs aochs ocahs coahs acohs caohs hacos ahcos hcaos chaos achos cahos shaco hsaco sahco ashco hasco ahsco shcao hscao schao cshao hcsao chsao sacho ascho scaho csaho acsho casho hacso ahcso hcaso chaso achso cahso
Note: these 'words' (valid or invalid) are all the permutations of the word oshac. These words are obtained by scrambling the letters in oshac.