-al a-a a-b a-i aaa aab aae aai aal aap aax ab- aba abb abe abi abl abp abx aea aeb aee aei ael aep aex ai- aia aib aie aii ail aip aix al- ala alb ale ali all alp alx ap- apa apb ape api apl app apx ax- axa axe axi axl axp axx b-p baa bab bae bai bal bap bax bba bbb bbe bbi bbl bbp bbx be- bea beb bee bei bel bep bex bi- bia bib bie bii bil bip bix bla blb ble bli bll blp blx bpa bpb bpe bpi bpl bpp bpx bxb bxi bxl bxx eaa eab eae eai eal eap eax eba ebb ebe ebi ebl ebp ebx eea eeb eee eel eep eex eia eib eie eii eil eip eix ela elb ele eli ell elp elx ep- epa epb epe epi epl epp epx ex- exa exe exi exl exp exx ia- iaa iab iae iai ial iap iba ibb ibe ibi ibl ibp ibx ie- iea iee iei iel iep iex iia iib iie iii iil iip iix il- ila ilb ile ili ill ilp ilx ipa ipb ipe ipi ipl ipp ipx ixe ixi ixl l-p la- laa lab lae lai lal lap lax lba lbb lbe lbi lbl lbp lbx lea leb lee lei lel lep lex lia lib lie lii lil lip lix lla llb lle lli lll llp lpa lpb lpe lpi lpl lpp lpx lxi lxx p-p paa pab pae pai pal pap pax pba pbb pbe pbi pbl pbp pbx pea peb pee pei pel pep pex pia pib pie pii pil pip pix pla plb ple pli pll plp plx ppa ppb ppe ppi ppl ppp ppx pxe pxl xaa xal xap xbe xbl xbx xee xel xep xex xia xie xii xix xla xlb xli xpa xpb xpe xpl xpp xxi xxl xxp xxx