-al -er a-a a-b a-t aaa aab aad aae aal aap aar aat ab- aba abb abd abe abl abp abr abt ad- ada adb add ade adl adp adr adt aea aeb aed aee ael aep aer aet al- ala alb ald ale all alp alr alt ap- apa apb apd ape apl app apr apt ar- ara arb ard are arl arp arr art at- ata atb atd ate atl atp atr att b-p baa bab bad bae bal bap bar bat bba bbb bbd bbe bbl bbp bbr bbt bda bdb bdd bde bdl bdp bdr bdt be- bea beb bed bee bel bep ber bet bla blb bld ble bll blp blr blt bpa bpb bpd bpe bpl bpp bpr bpt bra brb brd bre brl brp brr brt bta btb btd bte btl btp btr btt daa dab dad dae dal dap dar dat dba dbb dbd dbe dbl dbp dbr dbt dda ddb ddd dde ddl ddp ddr ddt de- dea deb ded dee del dep der det dl- dla dlb dld dle dll dlp dlr dlt dpa dpb dpd dpe dpl dpp dpr dpt dra drb drd dre drl drp drr drt dta dtb dtd dte dtl dtp dtr dtt eaa eab ead eae eal eap ear eat eba ebb ebd ebe ebl ebp ebr ebt ed- eda edb edd ede edl edp edr edt eea eeb eed eee eel eep eer eet ela elb eld ele ell elp elr elt ep- epa epb epd epe epl epp epr ept era erb erd ere erl erp err ert eta etb etd ete etl etp etr ett l-p la- laa lab lad lae lal lap lar lat lba lbb lbd lbe lbl lbp lbr lbt lda ldb ldd lde ldl ldp ldr ldt lea leb led lee lel lep ler let lla llb lld lle lll llp llr llt lpa lpb lpd lpe lpl lpp lpr lpt lra lrb lrd lrp lrr lrt lta ltb ltd lte ltl ltp ltr ltt p-p paa pab pad pae pal pap par pat pba pbb pbd pbe pbl pbp pbr pbt pda pdb pdd pde pdl pdp pdr pdt pea peb ped pee pel pep per pet pla plb pld ple pll plp plr plt ppa ppb ppd ppe ppl ppp ppr ppt pra prb prd pre prl prp prr prt pt- pta ptb ptd pte ptl ptp ptr ptt ra- raa rab rad rae ral rap rar rat rba rbb rbd rbe rbl rbp rbr rbt rda rdb rdd rde rdl rdp rdr rdt re- rea reb red ree rel rep rer ret rla rld rle rll rlp rlr rlt rpa rpb rpd rpe rpl rpp rpr rpt rra rrb rrd rrl rrp rrr rrt rta rtb rtd rte rtl rtp rtr rtt taa tab tad tae tal tap tar tat tba tbb tbd tbe tbl tbp tbr tbt tda tdb tdd tde tdl tdp tdr tdt te- tea teb ted tee tel tep ter tet tla tld tle tll tlp tlr tlt tpa tpb tpd tpe tpl tpp tpr tpt tra trb trd tre trl trp trr trt tta ttb ttd tte ttl ttp ttr ttt