ocrbl corbl orcbl rocbl crobl rcobl ocbrl cobrl obcrl bocrl cborl bcorl orbcl robcl obrcl borcl rbocl brocl crbol rcbol cbrol bcrol rbcol brcol ocrlb corlb orclb roclb crolb rcolb oclrb colrb olcrb locrb clorb lcorb orlcb rolcb olrcb lorcb rlocb lrocb crlob rclob clrob lcrob rlcob lrcob ocblr coblr obclr boclr cbolr bcolr oclbr colbr olcbr locbr clobr lcobr oblcr bolcr olbcr lobcr blocr lbocr cblor bclor clbor lcbor blcor lbcor orblc roblc obrlc borlc rbolc brolc orlbc rolbc olrbc lorbc rlobc lrobc oblrc bolrc olbrc lobrc blorc lborc rbloc brloc rlboc lrboc blroc lbroc crblo rcblo cbrlo bcrlo rbclo brclo crlbo rclbo clrbo lcrbo rlcbo lrcbo cblro bclro clbro lcbro blcro lbcro rblco brlco rlbco lrbco blrco lbrco
Note: these 'words' (valid or invalid) are all the permutations of the word ocrbl. These words are obtained by scrambling the letters in ocrbl.