omor omre omri omro one- oneb onee oneg oneh onei oneo oner onge ongi ongo onie onir onme onne onni onno onon onor oobe oobi ooer ooho oome oone oooh oooo oore orbb orbe orbi orbo ore- oreb oreg oreh orem oren oreo orer orge orgn orgo orhe ori- orie orig orin orio orme ormn ormo orne orni orno oro- oroe orom oron oror orri orro rbbb rbbr rbgh rboh rebb rebe rebo reeb reem reen rege regi regm regn rego regr rehb rehe rehi rehm rehn reii reim rein reir reme remi remn remo rene reng reni renn reno reog rere rerg reri rero rgbe rgbi rhbg rheb rhee rhem rhen rheo rhib rhim rhin rhio rhob rhog rhoh rhon rib- ribe ribo riem rien rier rige rigg righ rigi rigo riho riin rime rimi rimm rimo rine ring rinn rino riom rion rire riri rmon rmrg rnbr rnie rnin rob- robb robe robi robo roeg roen roer roge rogg rogh rogi rogo rohe rohm rohn rohr roig roin roio roir romb rome romi romm romo rone rong roni rono roob roog rooi room roon roor rore rori roro rrrr