bools obols bools obols oobls oobls bolos oblos bloos lboos olbos lobos bolos oblos bloos lboos olbos lobos oolbs oolbs olobs loobs olobs loobs boosl obosl boosl obosl oobsl oobsl bosol obsol bsool sbool osbol sobol bosol obsol bsool sbool osbol sobol oosbl oosbl osobl soobl osobl soobl bolso oblso bloso lboso olbso lobso boslo obslo bsolo sbolo osblo soblo blsoo lbsoo bsloo sbloo lsboo slboo olsbo losbo oslbo solbo lsobo slobo bolso oblso bloso lboso olbso lobso boslo obslo bsolo sbolo osblo soblo blsoo lbsoo bsloo sbloo lsboo slboo olsbo losbo oslbo solbo lsobo slobo oolsb oolsb olosb loosb olosb loosb ooslb ooslb osolb soolb osolb soolb olsob losob oslob solob lsoob sloob olsob losob oslob solob lsoob sloob
Note: these 'words' (valid or invalid) are all the permutations of the word bools. These words are obtained by scrambling the letters in bools.