rft ria rib rid rie rif rii ril rio rir rit rix rla rld rle rlf rli rll rlo rlr rlt roa rob rod roe rof roi rol roo ror rot rox rra rrb rrd rrf rri rrl rrr rrt rta rtb rtd rte rtf rti rtl rto rtr rtt rtx rxr t-x taa tab tad tae taf tai tal tao tar tat tax tba tbb tbd tbe tbf tbi tbl tbo tbr tbt tda tdb tdd tde tdf tdi tdl tdo tdr tdt tdx te- tea teb ted tee tef tei tel teo ter tet tex tfa tfb tfd tfe tff tfi tfl tfo tfr tft tfx tia tib tid tie tif tii til tio tir tit tix tla tld tle tlf tli tll tlo tlr tlt tlx to- toa tob tod toe tof toi tol too tor tot tox tra trb trd tre trf tri trl tro trr trt trx tta ttb ttd tte ttf tti ttl tto ttr ttt ttx txe txf txi txl txt xaa xad xaf xal xar xat xbe xbl xbr xbx xda xdb xde xdf xdi xdr xdt xed xee xel xer xet xex xfa xfe xfl xft xfx xia xie xii xio xit xix xla xlb xld xlf xli xlr xlt xoa xod xof xoi xoo xor xot xox xrd xrf xrt xrx xtf xti xtr xtx xxi xxl xxo xxx