-al -er a-a a-b aaa aab aae aaf aag aal aap aar ab- aba abb abe abf abg abl abp abr aea aeb aee aef aeg ael aep aer af- afa afb afe aff afg afl afp afr ag- aga agb age agf agg agl agp agr al- ala alb ale alf alg all alp alr ap- apa apb ape apf apg apl app apr ar- ara arb are arf arg arl arp arr b-p baa bab bae baf bag bal bap bar bba bbb bbe bbf bbg bbl bbp bbr be- bea beb bee bef beg bel bep ber bfa bfb bfe bff bfg bfl bfp bfr bga bgb bge bgf bgg bgl bgp bgr bla blb ble blf blg bll blp blr bpa bpb bpe bpf bpg bpl bpp bpr bra brb bre brf brg brl brp brr eaa eab eae eaf eag eal eap ear eba ebb ebe ebf ebg ebl ebp ebr eea eeb eee eef eeg eel eep eer ef- efa efb efe eff efg efl efp efr ega egb ege egf egg egl egp egr ela elb ele elf elg ell elp elr ep- epa epb epe epf epg epl epp epr era erb ere erf erg erl erp err faa fab fae faf fag fal fap far fba fbb fbe fbf fbg fbl fbp fbr fea feb fee fef feg fel fep fer ffa ffe fff ffg ffl ffp ffr fga fgb fge fgf fgg fgl fgp fgr fla flb fle flf flg fll flp flr fpa fpb fpe fpg fpl fpp fpr fra frb fre frf frg frl frp frr g-p gaa gab gae gaf gag gal gap gar gba gbe gbf gbg gbl gbp gbr ge- gea geb gee gef geg gel gep ger gfa gfb gfe gff gfl gfp gfr gga ggb ggg ggp ggr gla glb gle glf glg gll glp glr gpa gpb gpe gpf gpg gpl gpp gpr gra grb gre grf grg grl grp grr l-p la- laa lab lae laf lag lal lap lar lba lbb lbe lbf lbg lbl lbp lbr lea leb lee lef leg lel lep ler lfa lfb lfe lff lfg lfl lfp lfr lga lgb lge lgf lgg lgl lgp lgr lla llb lle llf llg lll llp llr lpa lpb lpe lpf lpg lpl lpp lpr lra lrb lrf lrg lrp lrr p-p paa pab pae paf pag pal pap par pba pbb pbe pbf pbg pbl pbp pbr pea peb pee pef peg pel pep per pfa pfb pfe pff pfg pfl pfp pfr pga pgb pge pgf pgg pgl pgp pgr pla plb ple plf plg pll plp plr ppa ppb ppe ppf ppg ppl ppp ppr pra prb pre prf prg prl prp prr ra- raa rab rae raf rag ral rap rar rba rbb rbe rbf rbg rbl rbp rbr re- rea reb ree ref reg rel rep rer rfa rfb rfe rff rfg rfl rfp rfr rga rgb rge rgf rgg rgp rgr rla rle rlf rlg rll rlp rlr rpa rpb rpe rpf rpg rpl rpp rpr rra rrb rrf rrg rrl rrp rrr