loups olups luops ulops oulps uolps lopus olpus lpous plous oplus polus lupos ulpos lpuos pluos uplos pulos oupls uopls opuls pouls upols puols lousp olusp luosp ulosp oulsp uolsp losup olsup lsoup sloup oslup solup lusop ulsop lsuop sluop uslop sulop ouslp uoslp osulp soulp usolp suolp lopsu olpsu lposu plosu oplsu polsu lospu olspu lsopu slopu oslpu solpu lpsou plsou lspou slpou pslou splou opslu poslu osplu soplu psolu spolu lupso ulpso lpuso pluso uplso pulso luspo ulspo lsupo slupo uslpo sulpo lpsuo plsuo lspuo slpuo psluo spluo upslo puslo usplo suplo psulo spulo oupsl uopsl opusl pousl uposl puosl ouspl uospl osupl soupl usopl suopl opsul posul ospul sopul psoul spoul upsol pusol uspol supol psuol spuol
Note: these 'words' (valid or invalid) are all the permutations of the word loups. These words are obtained by scrambling the letters in loups.