-al -er a-a a-b a-i aaa aab aad aae aai aal aap aar ab- aba abb abd abe abi abl abp abr ad- ada adb add ade adi adl adp adr aea aeb aed aee aei ael aep aer ai- aia aib aid aie aii ail aip air al- ala alb ald ale ali all alp alr ap- apa apb apd ape api apl app apr ar- ara arb ard are ari arl arp arr b-p baa bab bad bae bai bal bap bar bba bbb bbd bbe bbi bbl bbp bbr bda bdb bdd bde bdi bdl bdp bdr be- bea beb bed bee bei bel bep ber bi- bia bib bid bie bii bil bip bir bla blb bld ble bli bll blp blr bpa bpb bpd bpe bpi bpl bpp bpr bra brb brd bre bri brl brp brr daa dab dad dae dai dal dap dar dba dbb dbd dbe dbi dbl dbp dbr dda ddb ddd dde ddi ddl ddp ddr de- dea deb ded dee dei del dep der di- dia dib did die dii dil dip dir dl- dla dlb dld dle dli dll dlp dlr dpa dpb dpd dpe dpi dpl dpp dpr dra drb drd dre dri drl drp drr eaa eab ead eae eai eal eap ear eba ebb ebd ebe ebi ebl ebp ebr ed- eda edb edd ede edi edl edp edr eea eeb eed eee eel eep eer eia eib eid eie eii eil eip eir ela elb eld ele eli ell elp elr ep- epa epb epd epe epi epl epp epr era erb erd ere eri erl erp err i-d ia- iaa iab iad iae iai ial iap iar iba ibb ibd ibe ibi ibl ibp ibr ida idb idd ide idi idl idp idr ie- iea ied iee iei iel iep ier iia iib iid iie iii iil iip iir il- ila ilb ild ile ili ill ilp ilr ipa ipb ipd ipe ipi ipl ipp ipr ir- ira irb ird ire iri irl irp irr l-p la- laa lab lad lae lai lal lap lar lba lbb lbd lbe lbi lbl lbp lbr lda ldb ldd lde ldi ldl ldp ldr lea leb led lee lei lel lep ler lia lib lid lie lii lil lip lir lla llb lld lle lli lll llp llr lpa lpb lpd lpe lpi lpl lpp lpr lra lrb lrd lri lrp lrr p-p paa pab pad pae pai pal pap par pba pbb pbd pbe pbi pbl pbp pbr pda pdb pdd pde pdi pdl pdp pdr pea peb ped pee pei pel pep per pia pib pid pie pii pil pip pir pla plb pld ple pli pll plp plr ppa ppb ppd ppe ppi ppl ppp ppr pra prb prd pre pri prl prp prr ra- raa rab rad rae rai ral rap rar rba rbb rbd rbe rbi rbl rbp rbr rda rdb rdd rde rdi rdl rdp rdr re- rea reb red ree rei rel rep rer ria rib rid rie rii ril rip rir rla rld rle rli rll rlp rlr rpa rpb rpd rpe rpi rpl rpp rpr rra rrb rrd rri rrl rrp rrr