-al -er a-a a-b aaa aab aae aal aap aar aav ab- aba abb abe abl abp abr abv aea aeb aee ael aep aer aev al- ala alb ale all alp alr alv ap- apa apb ape apl app apr apv ar- ara arb are arl arp arr arv av- ava avb ave avl avp avr b-p baa bab bae bal bap bar bav bba bbb bbe bbl bbp bbr be- bea beb bee bel bep ber bev bla blb ble bll blp blr blv bpa bpb bpe bpl bpp bpr bpv bra brb bre brl brp brr brv bva bvb bve bvl bvp bvr bvv eaa eab eae eal eap ear eav eba ebb ebe ebl ebp ebr ebv eea eeb eee eel eep eer eev ela elb ele ell elp elr elv ep- epa epb epe epl epp epr era erb ere erl erp err erv eva evb eve evl evp evr evv l-p la- laa lab lae lal lap lar lav lba lbb lbe lbl lbp lbr lbv lea leb lee lel lep ler lev lla llb lle lll llp llr llv lpa lpb lpe lpl lpp lpr lpv lra lrb lrp lrr lrv lva lvb lve lvl lvp lvr lvv p-p paa pab pae pal pap par pav pba pbb pbe pbl pbp pbr pea peb pee pel pep per pev pla plb ple pll plp plr plv ppa ppb ppe ppl ppp ppr ppv pra prb pre prl prp prr prv pva pvb pve pvl pvp pvr pvv ra- raa rab rae ral rap rar rav rba rbb rbe rbl rbp rbr re- rea reb ree rel rep rer rev rla rle rll rlp rlr rpa rpb rpe rpl rpp rpr rpv rra rrb rrl rrp rrr rva rvb rve rvl rvp rvr rvv v-a v-e vaa vab vae val vap var vav vba vbl vbr vbv vea veb vee vel vep ver vl- vla vlb vle vll vlp vlv vpa vpb vpe vpl vpp vpr vra vrb vre vrp vrr vva vvb vvr vvv