oci ocl ocn oco ocr oct oea oec oee oef oeg oei oel oen oeo oer oet of- ofa ofc ofe off ofg ofi ofl ofn ofo ofr oft oga ogc oge ogf ogg ogi ogl ogn ogo ogt oia oic oie oif oii oil oin oio oir oit ola olc ole olf olg oli oll oln olo olt on- ona onc one onf ong oni onl onn ono onr ont oo- ooa ooc oof oog ooi ool oon ooo oor oot or- ora orc ore orf org ori orl orn oro orr ort ot- ota otc ote otf otg oti otl otn oto otr ott ra- raa rac rae raf rag rai ral ran rao rar rat rca rcc rce rcf rcg rci rcl rcn rco rcr rct re- rea rec ree ref reg rei rel ren reo rer ret rfa rfc rfe rff rfg rfi rfl rfn rfo rfr rft rga rgc rge rgf rgg rgi rgn rgo rgr rgt ria ric rie rif rig rii ril rin rio rir rit rla rlc rle rlf rlg rli rll rln rlo rlr rlt rna rnc rng rni rnn rno rnr rnt roa roc roe rof rog roi rol ron roo ror rot rra rrc rrf rrg rri rrl rrn rrr rrt rta rtc rte rtf rtg rti rtl rtn rto rtr rtt taa tac tae taf tag tai tal tan tao tar tat tca tcc tce tcf tcg tci tcl tcn tco tcr tct te- tea tec tee tef teg tei tel ten teo ter tet tfa tfc tfe tff tfg tfi tfl tfn tfo tfr tft tga tgc tge tgf tgg tgi tgl tgn tgo tgr tgt tia tic tie tif tig tii til tin tio tir tit tla tlc tle tlf tlg tli tll tln tlo tlr tlt tna tnc tne tnf tng tni tnl tnn tno tnr tnt to- toa toc toe tof tog toi tol ton too tor tot tra trc tre trf trg tri trl trn tro trr trt tta ttc tte ttf ttg tti ttl ttn tto ttr ttt