rog roi ron roo rop ror rot rox rpa rpb rpe rpg rpi rpn rpo rpp rpr rpt rpx rra rrb rrg rri rrn rrp rrr rrt rta rtb rte rtg rti rtn rto rtp rtr rtt rtx rxp rxr t-x taa tab tae tag tai tan tao tap tar tat tax tba tbb tbe tbg tbi tbn tbo tbp tbr tbt te- tea teb tee teg tei ten teo tep ter tet tex tga tgb tge tgg tgi tgn tgo tgp tgr tgt tia tib tie tig tii tin tio tip tir tit tix tna tnb tne tng tni tnn tno tnp tnr tnt tnx to- toa tob toe tog toi ton too top tor tot tox tpa tpb tpe tpg tpi tpn tpo tpp tpr tpt tpx tra trb tre trg tri trn tro trp trr trt trx tta ttb tte ttg tti ttn tto ttp ttr ttt ttx txe txi txn txt xaa xag xan xap xar xat xbe xbr xbx xee xeg xen xep xer xet xex xge xgi xgp xia xie xii xin xio xit xix xna xno xoa xog xoi xon xoo xop xor xot xox xpa xpb xpe xpg xpn xpo xpp xpt xrt xrx xti xtp xtr xtx xxi xxo xxp xxx