-al -er a-a a-b a-t aaa aab aae aal aan aap aar aat ab- aba abb abe abl abn abp abr abt aea aeb aee ael aen aep aer aet al- ala alb ale all aln alp alr alt an- ana anb ane anl ann anp anr ant ap- apa apb ape apl apn app apr apt ar- ara arb are arl arn arp arr art at- ata atb ate atl atn atp atr att b-p baa bab bae bal ban bap bar bat bba bbb bbe bbl bbn bbp bbr bbt be- bea beb bee bel ben bep ber bet bla blb ble bll bln blp blr blt bna bnb bne bnl bnn bnp bnr bnt bpa bpb bpe bpl bpn bpp bpr bpt bra brb bre brl brn brp brr brt bta btb bte btl btn btp btr btt eaa eab eae eal ean eap ear eat eba ebb ebe ebl ebn ebp ebr ebt eea eeb eee eel een eep eer eet ela elb ele ell eln elp elr elt en- ena enb ene enl enn enp enr ent ep- epa epb epe epl epn epp epr ept era erb ere erl ern erp err ert eta etb ete etl etn etp etr ett l-p la- laa lab lae lal lan lap lar lat lba lbb lbe lbl lbp lbr lbt lea leb lee lel len lep ler let lla llb lle lll lln llp llr llt lna lnb lne lnl lnn lnp lnr lnt lpa lpb lpe lpl lpn lpp lpr lpt lra lrb lrn lrp lrr lrt lta ltb lte ltl ltp ltr ltt naa nab nae nal nan nap nar nat nba nbb nbe nbl nbn nbp nbr nbt ne- nea neb nee nel nen nep ner net nla nlb nle nll nln nlp nlr nlt nna nnb nne nnl nnn nnp nnt npa npb npe npl npn npp npr npt nra nrb nre nrl nrn nrp nrr nrt nta ntb nte ntn ntp ntr ntt p-p paa pab pae pal pan pap par pat pba pbb pbe pbl pbn pbp pbr pbt pea peb pee pel pen pep per pet pla plb ple pll pln plp plr plt pn- pna pnb pne pnl pnn pnp pnr pnt ppa ppb ppe ppl ppn ppp ppr ppt pra prb pre prl prn prp prr prt pt- pta ptb pte ptl ptn ptp ptr ptt ra- raa rab rae ral ran rap rar rat rba rbb rbe rbl rbn rbp rbr rbt re- rea reb ree rel ren rep rer ret rla rle rll rln rlp rlr rlt rna rnb rnn rnp rnr rnt rpa rpb rpe rpl rpn rpp rpr rpt rra rrb rrl rrn rrp rrr rrt rta rtb rte rtl rtn rtp rtr rtt taa tab tae tal tan tap tar tat tba tbb tbe tbl tbn tbp tbr tbt te- tea teb tee tel ten tep ter tet tla tle tll tln tlp tlr tlt tna tnb tne tnl tnn tnp tnr tnt tpa tpb tpe tpl tpn tpp tpr tpt tra trb tre trl trn trp trr trt tta ttb tte ttl ttn ttp ttr ttt