rbbb rbbr rboh rcac rcbc rcbo rccb rccc rchb rcic rctc rcti rhib rhio rhoa rhob rhoc rhoh riaa riab riah riai riat rib- riba ribo rica ricc rich rico rict riha riho riht riia riot riri rita rith riti rito ritt roab roar roat rob- roba robb robi robo robt roca rocc roch roco roha rohr roia roio roir roit roob rooi roor root rora rorc rori roro rort rota rotc roth roti roto rotr rott rrah rrat rrrr rtai rtca rtcc taa- taar taat taba tabb tabc tabi tabo taca tacc tach taci taco tact taha tahi taho tahr taia taio tair tait taoa taor tara tarb tarc tari taro tarr tart tata tatb tath tati tato tatr tatt tbar tbca tbcb tbcc tbit tbrb tbta tcca tccc tch- tcha tchh tchi tcho tchr tctc thaa thai thao thar that thca thch thi- thia thic thio thir thoo thor thot thra thri thro thtb thtr tiaa tiab tiao tiar tiba tibi tica ticc tich tico tiht tiit tira tirb tiri tiro tirr tita titc tith titi tito titt toab toat toba tobi tobo tobt toca toch toci toco tohi toho toit tooa tooh toor toot tora torc tori toro torr tort tota totc toth toti toto totr tott traa trab trac trai trao trat trca trcc tri- tria trib tric trio trit troa troc troi troo trot trra trtc trtr ttab ttbb tttt