novlr onvlr nvolr vnolr ovnlr vonlr nolvr onlvr nlovr lnovr olnvr lonvr nvlor vnlor nlvor lnvor vlnor lvnor ovlnr volnr olvnr lovnr vlonr lvonr novrl onvrl nvorl vnorl ovnrl vonrl norvl onrvl nrovl rnovl ornvl ronvl nvrol vnrol nrvol rnvol vrnol rvnol ovrnl vornl orvnl rovnl vronl rvonl nolrv onlrv nlorv lnorv olnrv lonrv norlv onrlv nrolv rnolv ornlv ronlv nlrov lnrov nrlov rnlov lrnov rlnov olrnv lornv orlnv rolnv lronv rlonv nvlro vnlro nlvro lnvro vlnro lvnro nvrlo vnrlo nrvlo rnvlo vrnlo rvnlo nlrvo lnrvo nrlvo rnlvo lrnvo rlnvo vlrno lvrno vrlno rvlno lrvno rlvno ovlrn volrn olvrn lovrn vlorn lvorn ovrln vorln orvln rovln vroln rvoln olrvn lorvn orlvn rolvn lrovn rlovn vlron lvron vrlon rvlon lrvon rlvon
Note: these 'words' (valid or invalid) are all the permutations of the word novlr. These words are obtained by scrambling the letters in novlr.