arson rason asron saron rsaon sraon arosn raosn aorsn oarsn roasn orasn asorn saorn aosrn oasrn soarn osarn rsoan sroan rosan orsan soran osran arsno rasno asrno sarno rsano srano arnso ranso anrso narso rnaso nraso asnro sanro ansro nasro snaro nsaro rsnao srnao rnsao nrsao snrao nsrao arons raons aorns oarns roans orans arnos ranos anros naros rnaos nraos aonrs oanrs anors naors onars noars ronas ornas rnoas nroas onras noras asonr saonr aosnr oasnr soanr osanr asnor sanor ansor nasor snaor nsaor aonsr oansr anosr naosr onasr noasr sonar osnar snoar nsoar onsar nosar rsona srona rosna orsna sorna osrna rsnoa srnoa rnsoa nrsoa snroa nsroa ronsa ornsa rnosa nrosa onrsa norsa sonra osnra snora nsora onsra nosra
Note: these 'words' (valid or invalid) are all the permutations of the word arson. These words are obtained by scrambling the letters in arson.