-al -er a-a a-b a-t aaa aab aae aak aal aap aar aat ab- aba abb abe abk abl abp abr abt aea aeb aee aek ael aep aer aet aka akb ake akk akl akp akr al- ala alb ale alk all alp alr alt ap- apa apb ape apk apl app apr apt ar- ara arb are ark arl arp arr art at- ata atb ate atl atp atr att b-p baa bab bae bak bal bap bar bat bba bbb bbe bbk bbl bbp bbr bbt be- bea beb bee bek bel bep ber bet bka bkb bke bkk bkl bkp bkr bkt bla blb ble blk bll blp blr blt bpa bpb bpe bpl bpp bpr bpt bra brb bre brk brl brp brr brt bta btb bte btk btl btp btr btt eaa eab eae eak eal eap ear eat eba ebb ebe ebk ebl ebp ebr ebt eea eeb eee eek eel eep eer eet eka ekb eke ekl ekp ekr ekt ela elb ele elk ell elp elr elt ep- epa epb epe epl epp epr ept era erb ere erk erl erp err ert eta etb ete etk etl etp etr ett k-t ka- kaa kab kae kak kal kap kar kat kba kbb kbe kbk kbl kbp kbr ke- kea keb kee kek kel kep ker ket kkb kke kkk kkl kkp kkr kkt kl- kla klb klr klt kpa kpe kpk kpl kpp kpr kpt kra krk krl krp krr krt kta ktb kte ktk ktl ktp ktr ktt l-p la- laa lab lae lak lal lap lar lat lba lbb lbe lbk lbl lbp lbr lbt lea leb lee lek lel lep ler let lka lkb lkl lkp lkr lkt lla llb lle llk lll llp llr llt lpa lpb lpe lpk lpl lpp lpr lpt lra lrb lrk lrp lrr lrt lta ltb lte ltk ltl ltp ltr ltt p-p paa pab pae pak pal pap par pat pba pbb pbe pbk pbl pbp pbr pbt pea peb pee pek pel pep per pet pka pkb pke pkl pkp pkr pkt pla plb ple plk pll plp plr plt ppa ppb ppe ppk ppl ppp ppr ppt pra prb pre prk prl prp prr prt pt- pta ptb pte ptk ptl ptp ptr ptt ra- raa rab rae rak ral rap rar rat rba rbb rbe rbk rbl rbp rbr rbt re- rea reb ree rek rel rep rer ret rkb rke rkk rkp rkt rla rle rll rlp rlr rlt rpa rpb rpe rpk rpl rpp rpr rpt rra rrb rrk rrl rrp rrr rrt rta rtb rte rtk rtl rtp rtr rtt taa tab tae tak tal tap tar tat tba tbb tbe tbk tbl tbp tbr tbt te- tea teb tee tek tel tep ter tet tka tkb tke tkk tkl tkp tkr tkt tla tle tlk tll tlp tlr tlt tpa tpb tpe tpk tpl tpp tpr tpt tra trb tre trk trl trp trr trt tta ttb tte ttk ttl ttp ttr ttt