arsis rasis asris saris rsais srais ariss raiss airss iarss riass irass asirs sairs aisrs iasrs siars isars rsias srias risas irsas siras isras arssi rassi asrsi sarsi rsasi srasi arssi rassi asrsi sarsi rsasi srasi assri sasri assri sasri ssari ssari rssai srsai rssai srsai ssrai ssrai ariss raiss airss iarss riass irass arsis rasis asris saris rsais srais aisrs iasrs asirs sairs isars siars risas irsas rsias srias isras siras asisr saisr aissr iassr siasr isasr assir sasir assir sasir ssair ssair aissr iassr asisr saisr isasr siasr sisar issar ssiar ssiar issar sisar rsisa srisa rissa irssa sirsa isrsa rssia srsia rssia srsia ssria ssria rissa irssa rsisa srisa isrsa sirsa sisra issra ssira ssira issra sisra
Note: these 'words' (valid or invalid) are all the permutations of the word arsis. These words are obtained by scrambling the letters in arsis.