-al -er a-a a-b a-t aaa aab aae aag aal aap aar aat ab- aba abb abe abg abl abp abr abt aea aeb aee aeg ael aep aer aet ag- aga agb age agg agl agp agr agt al- ala alb ale alg all alp alr alt ap- apa apb ape apg apl app apr apt ar- ara arb are arg arl arp arr art at- ata atb ate atg atl atp atr att b-p baa bab bae bag bal bap bar bat bba bbb bbe bbg bbl bbp bbr bbt be- bea beb bee beg bel bep ber bet bga bgb bge bgg bgl bgp bgr bgt bla blb ble blg bll blp blr blt bpa bpb bpe bpg bpl bpp bpr bpt bra brb bre brg brl brp brr brt bta btb bte btg btl btp btr btt eaa eab eae eag eal eap ear eat eba ebb ebe ebg ebl ebp ebr ebt eea eeb eee eeg eel eep eer eet ega egb ege egg egl egp egr egt ela elb ele elg ell elp elr elt ep- epa epb epe epg epl epp epr ept era erb ere erg erl erp err ert eta etb ete etg etl etp etr ett g-p gaa gab gae gag gal gap gar gat gba gbe gbg gbl gbp gbr gbt ge- gea geb gee geg gel gep ger get gga ggb ggg ggp ggr ggt gla glb gle glg gll glp glr glt gpa gpb gpe gpg gpl gpp gpr gpt gra grb gre grg grl grp grr grt gta gtb gte gtg gtl gtp gtr gtt l-p la- laa lab lae lag lal lap lar lat lba lbb lbe lbg lbl lbp lbr lbt lea leb lee leg lel lep ler let lga lgb lge lgg lgl lgp lgr lgt lla llb lle llg lll llp llr llt lpa lpb lpe lpg lpl lpp lpr lpt lra lrb lrg lrp lrr lrt lta ltb lte ltg ltl ltp ltr ltt p-p paa pab pae pag pal pap par pat pba pbb pbe pbg pbl pbp pbr pbt pea peb pee peg pel pep per pet pga pgb pge pgg pgl pgp pgr pgt pla plb ple plg pll plp plr plt ppa ppb ppe ppg ppl ppp ppr ppt pra prb pre prg prl prp prr prt pt- pta ptb pte ptg ptl ptp ptr ptt ra- raa rab rae rag ral rap rar rat rba rbb rbe rbg rbl rbp rbr rbt re- rea reb ree reg rel rep rer ret rga rgb rge rgg rgp rgr rgt rla rle rlg rll rlp rlr rlt rpa rpb rpe rpg rpl rpp rpr rpt rra rrb rrg rrl rrp rrr rrt rta rtb rte rtg rtl rtp rtr rtt taa tab tae tag tal tap tar tat tba tbb tbe tbg tbl tbp tbr tbt te- tea teb tee teg tel tep ter tet tga tgb tge tgg tgl tgp tgr tgt tla tle tlg tll tlp tlr tlt tpa tpb tpe tpg tpl tpp tpr tpt tra trb tre trg trl trp trr trt tta ttb tte ttg ttl ttp ttr ttt