roo rop ror rou roy rpa rpb rpc rph rpl rpn rpo rpp rpr rpu rra rrb rrc rrh rrl rrn rrp rrr rru rua rub ruc ruh run ruo rup rur ruu ruy ry- rya ryc ryn ryo ryr ryu ryy ua- uaa uab uac uah ual uan uao uap uar uau uay uba ubb ubc ubh ubl ubn ubo ubp ubr ubu uby uca ucb ucc uch ucl ucn uco ucp ucr ucu uha uhb uhc uhh uhl uho uhp uhr uhu uhy ula ulb ulc ull uln ulo ulp ulr ulu uly un- una unb unc unh unl unn uno unp unr unu uny uoa uob uoc uol uon uoo uop uor up- upa upb upc uph upn upo upp upr upu ur- ura urb urc url urn uro urp urr uru ury uua uuc uun uur uuu uyc uyo uyu yaa yab yac yah yal yan yao yap yar yau yay ybc ybl ybp ybr yby yca ycc ych ycl yco ycp ycu ycy yha yhc yhu ylc yll ylr yly yna ynn ynp ynu yny yob yoc yol yon yoo yop yor you yoy ypa ypl ypo ypu yra yrc yrn yro yrp yru yua yuh yul yun yuo yup yur yuu yuy yyb yyc yyu yyy