pmofl mpofl pomfl opmfl mopfl ompfl pmfol mpfol pfmol fpmol mfpol fmpol pofml opfml pfoml fpoml ofpml fopml mofpl omfpl mfopl fmopl ofmpl fompl pmolf mpolf pomlf opmlf moplf omplf pmlof mplof plmof lpmof mlpof lmpof polmf oplmf plomf lpomf olpmf lopmf molpf omlpf mlopf lmopf olmpf lompf pmflo mpflo pfmlo fpmlo mfplo fmplo pmlfo mplfo plmfo lpmfo mlpfo lmpfo pflmo fplmo plfmo lpfmo flpmo lfpmo mflpo fmlpo mlfpo lmfpo flmpo lfmpo poflm opflm pfolm fpolm ofplm foplm polfm oplfm plofm lpofm olpfm lopfm pflom fplom plfom lpfom flpom lfpom oflpm folpm olfpm lofpm flopm lfopm moflp omflp mfolp fmolp ofmlp fomlp molfp omlfp mlofp lmofp olmfp lomfp mflop fmlop mlfop lmfop flmop lfmop oflmp folmp olfmp lofmp flomp lfomp
Note: these 'words' (valid or invalid) are all the permutations of the word pmofl. These words are obtained by scrambling the letters in pmofl.