tarel atrel trael rtael artel ratel taerl aterl tearl etarl aetrl eatrl treal rteal teral etral retal ertal aretl raetl aertl eartl reatl eratl tarle atrle trale rtale artle ratle talre atlre tlare ltare altre latre trlae rtlae tlrae ltrae rltae lrtae arlte ralte alrte larte rlate lrate taelr atelr tealr etalr aetlr eatlr taler atler tlaer ltaer alter later telar etlar tlear ltear eltar letar aeltr ealtr aletr laetr elatr leatr trela rtela terla etrla retla ertla trlea rtlea tlrea ltrea rltea lrtea telra etlra tlera ltera eltra letra relta erlta rleta lreta elrta lerta arelt raelt aerlt earlt realt eralt arlet ralet alret laret rlaet lraet aelrt ealrt alert laert elart leart relat erlat rleat lreat elrat lerat
Note: these 'words' (valid or invalid) are all the permutations of the word tarel. These words are obtained by scrambling the letters in tarel.