limbs ilmbs lmibs mlibs imlbs milbs libms ilbms lbims blims iblms bilms lmbis mlbis lbmis blmis mblis bmlis imbls mibls ibmls bimls mbils bmils limsb ilmsb lmisb mlisb imlsb milsb lismb ilsmb lsimb slimb islmb silmb lmsib mlsib lsmib slmib mslib smlib imslb mislb ismlb simlb msilb smilb libsm ilbsm lbism blism iblsm bilsm lisbm ilsbm lsibm slibm islbm silbm lbsim blsim lsbim slbim bslim sblim ibslm bislm isblm siblm bsilm sbilm lmbsi mlbsi lbmsi blmsi mblsi bmlsi lmsbi mlsbi lsmbi slmbi mslbi smlbi lbsmi blsmi lsbmi slbmi bslmi sblmi mbsli bmsli msbli smbli bsmli sbmli imbsl mibsl ibmsl bimsl mbisl bmisl imsbl misbl ismbl simbl msibl smibl ibsml bisml isbml sibml bsiml sbiml mbsil bmsil msbil smbil bsmil sbmil
Note: these 'words' (valid or invalid) are all the permutations of the word limbs. These words are obtained by scrambling the letters in limbs.