serow esrow sreow rseow ersow resow seorw esorw soerw oserw eosrw oesrw sroew rsoew sorew osrew rosew orsew erosw reosw eorsw oersw roesw oresw serwo esrwo srewo rsewo erswo reswo sewro eswro swero wsero ewsro wesro srweo rsweo swreo wsreo rwseo wrseo erwso rewso ewrso werso rweso wreso seowr esowr soewr osewr eoswr oeswr sewor eswor sweor wseor ewsor wesor sower oswer swoer wsoer owser woser eowsr oewsr ewosr weosr owesr woesr srowe rsowe sorwe osrwe roswe orswe srwoe rswoe swroe wsroe rwsoe wrsoe sowre oswre swore wsore owsre wosre rowse orwse rwose wrose owrse worse erows reows eorws oerws roews orews erwos rewos ewros weros rweos wreos eowrs oewrs ewors weors owers woers rowes orwes rwoes wroes owres wores
Note: these 'words' (valid or invalid) are all the permutations of the word serow. These words are obtained by scrambling the letters in serow.