tupol utpol tpuol ptuol uptol putol tuopl utopl toupl otupl uotpl outpl tpoul ptoul topul otpul potul optul upotl puotl uoptl ouptl poutl oputl tuplo utplo tpulo ptulo uptlo putlo tulpo utlpo tlupo ltupo ultpo lutpo tpluo ptluo tlpuo ltpuo pltuo lptuo uplto pulto ulpto lupto pluto lputo tuolp utolp toulp otulp uotlp outlp tulop utlop tluop ltuop ultop lutop tolup otlup tloup ltoup oltup lotup uoltp oultp ulotp luotp olutp loutp tpolu ptolu toplu otplu potlu optlu tplou ptlou tlpou ltpou pltou lptou tolpu otlpu tlopu ltopu oltpu lotpu poltu opltu plotu lpotu olptu loptu upolt puolt uoplt ouplt poult opult uplot pulot ulpot lupot pluot lpuot uolpt oulpt ulopt luopt olupt loupt polut oplut plout lpout olput loput
Note: these 'words' (valid or invalid) are all the permutations of the word tupol. These words are obtained by scrambling the letters in tupol.