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