oii oik oil oim oio oir oit oka okc oke oki okk okl oko okr ola olc ole olf oli olk oll olm olo olt om- oma omc ome omf omi oml omm omo omr omt oo- ooa ooc oof ooi ook ool oom ooo oor oot or- ora orc ore orf ori ork orl orm oro orr ort ot- ota otc ote otf oti otk otl otm oto otr ott ra- raa rac rae raf rai rak ral ram rao rar rat rca rcc rce rcf rci rcl rcm rco rcr rct re- rea rec ree ref rei rek rel rem reo rer ret rfa rfc rfe rff rfi rfk rfl rfm rfo rfr rft ria ric rie rif rii rik ril rim rio rir rit rkc rke rkf rkk rkm rko rkt rla rlc rle rlf rli rll rlm rlo rlr rlt rma rmc rme rmf rmi rml rmm rmo rmr rmt roa roc roe rof roi rok rol rom roo ror rot rra rrc rrf rri rrk rrl rrm rrr rrt rta rtc rte rtf rti rtk rtl rtm rto rtr rtt taa tac tae taf tai tak tal tam tao tar tat tca tcc tce tcf tci tck tcl tcm tco tcr tct te- tea tec tee tef tei tek tel tem teo ter tet tfa tfc tfe tff tfi tfk tfl tfm tfo tfr tft tia tic tie tif tii tik til tim tio tir tit tka tkc tke tkk tkl tkm tko tkr tkt tla tlc tle tlf tli tlk tll tlm tlo tlr tlt tma tmc tme tmf tmi tmk tml tmm tmo tmr tmt to- toa toc toe tof toi tok tol tom too tor tot tra trc tre trf tri trk trl trm tro trr trt tta ttc tte ttf tti ttk ttl ttm tto ttr ttt