-er a-a a-q a-t aaa aad aae aap aaq aar aat ad- ada add ade adp adq adr adt aea aed aee aep aeq aer aet ap- apa apd ape app apq apr apt aqa aqp aqr aqt ar- ara ard are arp arq arr art at- ata atd ate atp atr att daa dad dae dap daq dar dat dda ddd dde ddp ddq ddr ddt de- dea ded dee dep deq der det dpa dpd dpe dpp dpr dpt dqa dqe dra drd dre drp drq drr drt dta dtd dte dtp dtr dtt eaa ead eae eap ear eat ed- eda edd ede edp edr edt eea eed eee eep eer eet ep- epa epd epe epp epq epr ept eqa eqe eqp eqq eqt era erd ere erp erq err ert eta etd ete etp etr ett p-p paa pad pae pap paq par pat pda pdd pde pdp pdq pdr pdt pea ped pee pep per pet ppa ppd ppe ppp ppq ppr ppt pqq pqr pra prd pre prp prq prr prt pt- pta ptd pte ptp ptq ptr ptt qaa qad qap qar qat qda qdr qdt qed qee qep qet qpp qpr qqq qra qre qrp qrt qta qtd qtq qtr ra- raa rad rae rap raq rar rat rda rdd rde rdp rdr rdt re- rea red ree rep req rer ret rpa rpd rpe rpp rpr rpt rra rrd rrp rrq rrr rrt rta rtd rte rtp rtq rtr rtt taa tad tae tap taq tar tat tda tdd tde tdp tdr tdt te- tea ted tee tep teq ter tet tpa tpd tpe tpp tpq tpr tpt tra trd tre trp trq trr trt tta ttd tte ttp ttr ttt