eerier effeir effere er-rif euerie euippe euripe euripi feerie feifer feirie ferfer ferier ferrer ferri- ferrie ferrup ferrur fiefie freepr freeup frefre freire freure fruupp furfie furfur furrer furrfu i-free iffier ipfire peepee peeper peerer peerie peffer peiere peiper pepper perere perier perire perper perree perrie pieper pierie pierre pierri piffer piperi pipeup pipier pipipi pipiri pipper pippip piree pirrie pirrip piupiu pppppp preeue prefer preffe preier preiff preire preue- preui- priefe priere prieue prieur priffe puerer puffer puffup puriri purpie purpre purpur purree purrer reefer reeffe reeper refeff refire refrei repier repipe repper repref reprie repure repuru reueir reuere reuire riffer rififi ripier ripper riuere ruffer ruffie upripe uruffe uruppu