rbt rbu re- rea reb ree reg rel ren reo rep rer ret reu rga rgb rge rgg rgn rgo rgp rgr rgt rla rle rlg rll rln rlo rlp rlr rlt rlu rna rnb rng rnn rno rnp rnr rnt rnu roa rob roe rog rol ron roo rop ror rot rou rpa rpb rpe rpg rpl rpn rpo rpp rpr rpt rpu rra rrb rrg rrl rrn rrp rrr rrt rru rta rtb rte rtg rtl rtn rto rtp rtr rtt rtu rua rub rue rug run ruo rup rur rut ruu taa tab tae tag tal tan tao tap tar tat tau tba tbb tbe tbg tbl tbn tbo tbp tbr tbt tbu te- tea teb tee teg tel ten teo tep ter tet teu tga tgb tge tgg tgl tgn tgo tgp tgr tgt tgu tla tle tlg tll tln tlo tlp tlr tlt tlu tna tnb tne tng tnl tnn tno tnp tnr tnt to- toa tob toe tog tol ton too top tor tot tou tpa tpb tpe tpg tpl tpn tpo tpp tpr tpt tpu tra trb tre trg trl trn tro trp trr trt tru tta ttb tte ttg ttl ttn tto ttp ttr ttt ttu tua tub tue tug tul tun tuo tup tur tut tuu ua- uaa uab uae uag ual uan uao uap uar uat uau uba ubb ube ubg ubl ubn ubo ubp ubr ubt ubu uea ueb uee ueg uel uen uep uer uet uga ugb uge ugg ugl ugn ugo ugp ugr ugt ugu ula ulb ule ulg ull uln ulo ulp ulr ult ulu un- una unb une ung unl unn uno unp unr unt unu uoa uob uoe uog uol uon uoo uop uor uot up- upa upb upe upg upn upo upp upr upt upu ur- ura urb ure urg url urn uro urp urr urt uru uta utb ute utl utn uto utp utr utt utu uua uue uug uun uur uut uuu