erped reped epred pered rpeed preed erepd reepd eerpd eerpd reepd erepd eperd peerd eeprd eeprd peerd eperd rpeed preed reped erped pered epred erpde repde eprde perde rpede prede erdpe redpe edrpe derpe rdepe drepe epdre pedre edpre depre pdere dpere rpdee prdee rdpee drpee pdree dpree eredp reedp eerdp eerdp reedp eredp erdep redep edrep derep rdeep dreep eedrp eedrp ederp deerp ederp deerp redep erdep rdeep dreep edrep derep epedr peedr eepdr eepdr peedr epedr epder peder edper deper pdeer dpeer eedpr eedpr edepr deepr edepr deepr peder epder pdeer dpeer edper deper rpede prede repde erpde perde eprde rpdee prdee rdpee drpee pdree dpree redpe erdpe rdepe drepe edrpe derpe pedre epdre pdere dpere edpre depre
Note: these 'words' (valid or invalid) are all the permutations of the word erped. These words are obtained by scrambling the letters in erped.