repro erpro rpero prero eprro perro rerpo errpo rrepo rrepo errpo rerpo rpreo prreo rrpeo rrpeo prreo rpreo eprro perro erpro repro prero rpero repor erpor rpeor preor epror peror reopr eropr roepr orepr eorpr oerpr rpoer proer roper orper porer oprer eporr peorr eoprr oeprr poerr operr rerop errop rreop rreop errop rerop reorp erorp roerp orerp eorrp oerrp rroep rroep rorep orrep rorep orrep erorp reorp eorrp oerrp roerp orerp rproe prroe rrpoe rrpoe prroe rproe rpore prore ropre orpre porre oprre rrope rrope rorpe orrpe rorpe orrpe prore rpore porre oprre ropre orpre epror peror erpor repor preor rpeor eporr peorr eoprr oeprr poerr operr eropr reopr eorpr oerpr roepr orepr proer rpoer porer oprer roper orper
Note: these 'words' (valid or invalid) are all the permutations of the word repro. These words are obtained by scrambling the letters in repro.