shyer hsyer syher ysher hyser yhser sheyr hseyr sehyr eshyr hesyr ehsyr syehr ysehr seyhr esyhr yeshr eyshr hyesr yhesr heysr ehysr yehsr eyhsr shyre hsyre syhre yshre hysre yhsre shrye hsrye srhye rshye hrsye rhsye syrhe ysrhe sryhe rsyhe yrshe ryshe hyrse yhrse hryse rhyse yrhse ryhse shery hsery sehry eshry hesry ehsry shrey hsrey srhey rshey hrsey rhsey serhy esrhy srehy rsehy ershy reshy hersy ehrsy hresy rhesy erhsy rehsy syerh yserh seyrh esyrh yesrh eysrh syreh ysreh sryeh rsyeh yrseh ryseh seryh esryh sreyh rseyh ersyh resyh yersh eyrsh yresh ryesh erysh reysh hyers yhers heyrs ehyrs yehrs eyhrs hyres yhres hryes rhyes yrhes ryhes herys ehrys hreys rheys erhys rehys yerhs eyrhs yrehs ryehs eryhs reyhs
Note: these 'words' (valid or invalid) are all the permutations of the word shyer. These words are obtained by scrambling the letters in shyer.