nalts anlts nlats lnats alnts lants natls antls ntals tnals atnls tanls nltas lntas ntlas tnlas ltnas tlnas altns latns atlns talns ltans tlans nalst anlst nlast lnast alnst lanst naslt anslt nsalt snalt asnlt sanlt nlsat lnsat nslat snlat lsnat slnat alsnt lasnt aslnt salnt lsant slant natsl antsl ntasl tnasl atnsl tansl nastl anstl nsatl snatl asntl santl ntsal tnsal nstal sntal tsnal stnal atsnl tasnl astnl satnl tsanl stanl nltsa lntsa ntlsa tnlsa ltnsa tlnsa nlsta lnsta nslta snlta lsnta slnta ntsla tnsla nstla sntla tsnla stnla ltsna tlsna lstna sltna tslna stlna altsn latsn atlsn talsn ltasn tlasn alstn lastn asltn saltn lsatn slatn atsln tasln astln satln tsaln staln ltsan tlsan lstan sltan tslan stlan
Note: these 'words' (valid or invalid) are all the permutations of the word nalts. These words are obtained by scrambling the letters in nalts.