eeee eele eiei eier eile eipr eire el-p elee eler elie elil elle elli elpe elpi epee eper epi- epie epil epip eple epll eppp eprp erei erel erer erie eril erle erli erll erpe erre ieie iele iere ieri iiie iiii ile- iler ilie ilir ill- ille illi illp ilpe ilpr ilre iper ipie ipil ippr ipri iree irel irer iri- irie iril irip irpe irre irri leel leep leer leie leil leir lele leli lell lepe lepi lepp lere lerp liel liep lier liii liir lile lili lill lip- lipe lipi lipl lipp lire liri lirl lirp lirr llll lppl lprp lrrr peel peep peer peil peip peir pel- pele pell pepe pepi per- pere peri perl perp perr piel piep pier piip pil- pile pili pill pipe pipi pipp pire piri pirl pirr ple- plee plei plie plip plpp plri pper ppie pple ppli pppp pre- pree prel prep pri- prie prii prle prlr prri reel reep reii reil reir rele rell relp repe repi repl repp repr rere reri riel riep rier rile rill rilp ripe ripi ripl ripp ripr rire riri rlee rpii rrle rrrr