rcu rda rdc rdd rde rdg rdl rdn rdo rdr rdt rdu re- rea rec red ree reg rel ren reo rer ret reu rga rgc rgd rge rgg rgn rgo rgr rgt rla rlc rld rle rlg rll rln rlo rlr rlt rlu rna rnc rnd rng rnn rno rnr rnt rnu roa roc rod roe rog rol ron roo ror rot rou rra rrc rrd rrg rrl rrn rrr rrt rru rta rtc rtd rte rtg rtl rtn rto rtr rtt rtu rua ruc rud rue rug run ruo rur rut ruu taa tac tad tae tag tal tan tao tar tat tau tca tcc tcd tce tcg tcl tcn tco tcr tct tcu tda tdc tdd tde tdg tdl tdn tdo tdr tdt tdu te- tea tec ted tee teg tel ten teo ter tet teu tga tgc tge tgg tgl tgn tgo tgr tgt tgu tla tlc tld tle tlg tll tln tlo tlr tlt tlu tna tnc tnd tne tng tnl tnn tno tnr tnt to- toa toc tod toe tog tol ton too tor tot tou tra trc trd tre trg trl trn tro trr trt tru tta ttc ttd tte ttg ttl ttn tto ttr ttt ttu tua tuc tud tue tug tul tun tuo tur tut tuu ua- uaa uac uad uae uag ual uan uao uar uat uau uca ucc ucd uce ucg ucl ucn uco ucr uct ucu uda udc udd ude udg udl udn udo udr udt udu uea uec ued uee ueg uel uen uer uet uga ugc uge ugg ugl ugn ugo ugr ugt ugu ula ulc uld ule ulg ull uln ulo ulr ult ulu un- una unc und une ung unl unn uno unr unt unu uoa uoc uod uoe uog uol uon uoo uor uot ur- ura urc urd ure urg url urn uro urr urt uru uta utc utd ute utl utn uto utr utt utu uua uuc uue uug uun uur uut uuu