rio rir rit rix rla rlc rle rlf rli rll rln rlo rlr rlt rna rnc rni rnn rno rnr rnt roa roc roe rof roi rol ron roo ror rot rox rra rrc rrf rri rrl rrn rrr rrt rta rtc rte rtf rti rtl rtn rto rtr rtt rtx rxr t-x taa tac tae taf tai tal tan tao tar tat tax tca tcc tce tcf tci tcl tcn tco tcr tct tcx te- tea tec tee tef tei tel ten teo ter tet tex tfa tfc tfe tff tfi tfl tfn tfo tfr tft tfx tia tic tie tif tii til tin tio tir tit tix tla tlc tle tlf tli tll tln tlo tlr tlt tlx tna tnc tne tnf tni tnl tnn tno tnr tnt tnx to- toa toc toe tof toi tol ton too tor tot tox tra trc tre trf tri trl trn tro trr trt trx tta ttc tte ttf tti ttl ttn tto ttr ttt ttx txe txf txi txl txn txt xaa xac xaf xal xan xar xat xcf xci xcl xcr xcx xee xel xen xer xet xex xfa xfe xfl xfn xft xfx xia xic xie xii xin xio xit xix xla xlf xli xlr xlt xna xnc xno xoa xoc xof xoi xon xoo xor xot xox xrc xrf xrt xrx xtc xtf xti xtr xtx xxi xxl xxo xxx