-er a-a a-t a-z aaa aad aae aap aar aat aaz ad- ada add ade adp adr adt adz aea aed aee aep aer aet aez ap- apa apd ape app apr apt ar- ara ard are arp arr art arz at- ata atd ate atp atr att atz az- aza azd aze azp azt azz daa dad dae dap dar dat daz dda ddd dde ddp ddr ddt ddz de- dea ded dee dep der det dez dpa dpd dpe dpp dpr dpt dpz dra drd dre drp drr drt drz dta dtd dte dtp dtr dtt dtz dza dzd dze dzp dzr eaa ead eae eap ear eat eaz ed- eda edd ede edp edr edt eea eed eee eep eer eet ep- epa epd epe epp epr ept epz era erd ere erp err ert erz eta etd ete etp etr ett etz eze ezr ezz p-p paa pad pae pap par pat paz pda pdd pde pdp pdr pdt pdz pea ped pee pep per pet pez ppa ppd ppe ppp ppr ppt ppz pra prd pre prp prr prt prz pt- pta ptd pte ptp ptr ptt ptz pzp pzt ra- raa rad rae rap rar rat raz rda rdd rde rdp rdr rdt re- rea red ree rep rer ret rez rpa rpd rpe rpp rpr rpt rpz rra rrd rrp rrr rrt rta rtd rte rtp rtr rtt rtz rza rze taa tad tae tap tar tat taz tda tdd tde tdp tdr tdt te- tea ted tee tep ter tet tez tpa tpd tpe tpp tpr tpt tpz tra trd tre trp trr trt trz tta ttd tte ttp ttr ttt tza tzd tze zaa zad zap zar zat zaz zdt zea zed zee zep zer zet zez zpe zpp zpr zpt zrp zta zte ztr zzr zzt zzz