basti absti bsati sbati asbti sabti batsi abtsi btasi tbasi atbsi tabsi bstai sbtai btsai tbsai stbai tsbai astbi satbi atsbi tasbi stabi tsabi basit absit bsait sbait asbit sabit baist abist biast ibast aibst iabst bsiat sbiat bisat ibsat sibat isbat asibt saibt aisbt iasbt siabt isabt batis abtis btais tbais atbis tabis baits abits biats ibats aibts iabts btias tbias bitas ibtas tibas itbas atibs taibs aitbs iatbs tiabs itabs bstia sbtia btsia tbsia stbia tsbia bsita sbita bista ibsta sibta isbta btisa tbisa bitsa ibtsa tibsa itbsa stiba tsiba sitba istba tisba itsba astib satib atsib tasib staib tsaib asitb saitb aistb iastb siatb isatb atisb taisb aitsb iatsb tiasb itasb stiab tsiab sitab istab tisab itsab
Note: these 'words' (valid or invalid) are all the permutations of the word basti. These words are obtained by scrambling the letters in basti.