-al -er a-a a-b a-i aaa aab aae aai aal aap aar aav ab- aba abb abe abi abl abp abr abv aea aeb aee aei ael aep aer aev ai- aia aib aie aii ail aip air aiv al- ala alb ale ali all alp alr alv ap- apa apb ape api apl app apr apv ar- ara arb are ari arl arp arr arv av- ava avb ave avi avl avp avr b-p baa bab bae bai bal bap bar bav bba bbb bbe bbi bbl bbp bbr be- bea beb bee bei bel bep ber bev bi- bia bib bie bii bil bip bir biv bla blb ble bli bll blp blr blv bpa bpb bpe bpi bpl bpp bpr bpv bra brb bre bri brl brp brr brv bva bvb bve bvi bvl bvp bvr bvv eaa eab eae eai eal eap ear eav eba ebb ebe ebi ebl ebp ebr ebv eea eeb eee eel eep eer eev eia eib eie eii eil eip eir eiv ela elb ele eli ell elp elr elv ep- epa epb epe epi epl epp epr era erb ere eri erl erp err erv eva evb eve evi evl evp evr evv i-v ia- iaa iab iae iai ial iap iar iav iba ibb ibe ibi ibl ibp ibr ibv ie- iea iee iei iel iep ier iev iia iib iie iii iil iip iir il- ila ilb ile ili ill ilp ilr ilv ipa ipb ipe ipi ipl ipp ipr ipv ir- ira irb ire iri irl irp irr irv iva ivb ive ivi ivl ivp ivr ivv l-p la- laa lab lae lai lal lap lar lav lba lbb lbe lbi lbl lbp lbr lbv lea leb lee lei lel lep ler lev lia lib lie lii lil lip lir liv lla llb lle lli lll llp llr llv lpa lpb lpe lpi lpl lpp lpr lpv lra lrb lri lrp lrr lrv lva lvb lve lvi lvl lvp lvr lvv p-p paa pab pae pai pal pap par pav pba pbb pbe pbi pbl pbp pbr pea peb pee pei pel pep per pev pia pib pie pii pil pip pir piv pla plb ple pli pll plp plr plv ppa ppb ppe ppi ppl ppp ppr ppv pra prb pre pri prl prp prr prv pva pvb pve pvi pvl pvp pvr pvv ra- raa rab rae rai ral rap rar rav rba rbb rbe rbi rbl rbp rbr re- rea reb ree rei rel rep rer rev ria rib rie rii ril rip rir riv rla rle rli rll rlp rlr rpa rpb rpe rpi rpl rpp rpr rpv rra rrb rri rrl rrp rrr rva rvb rve rvi rvl rvp rvr rvv v-a v-e vaa vab vae vai val vap var vav vba vbi vbl vbr vbv vea veb vee vei vel vep ver vi- via vib vie vii vil vip vir viv vl- vla vlb vle vll vlp vlv vpa vpb vpe vpi vpl vpp vpr vra vrb vre vri vrp vrr vva vvb vvi vvr vvv