-al -er -ol a-a a-b aaa aab aad aae aal aao aap aar ab- aba abb abd abe abl abo abp abr ad- ada adb add ade adl ado adp adr aea aeb aed aee ael aeo aep aer al- ala alb ald ale all alo alp alr aoa aob aod aoe aol aoo aop aor ap- apa apb apd ape apl apo app apr ar- ara arb ard are arl aro arp arr b-p baa bab bad bae bal bao bap bar bba bbb bbd bbe bbl bbo bbp bbr bda bdb bdd bde bdl bdo bdp bdr be- bea beb bed bee bel beo bep ber bla blb bld ble bll blo blp blr boa bob bod boe bol boo bop bor bpa bpb bpd bpe bpl bpo bpp bpr bra brb brd bre brl bro brp brr daa dab dad dae dal dao dap dar dba dbb dbd dbe dbl dbo dbp dbr dda ddb ddd dde ddl ddo ddp ddr de- dea deb ded dee del deo dep der dl- dla dlb dld dle dll dlo dlp dlr doa dob dod doe dol doo dop dor dpa dpb dpd dpe dpl dpo dpp dpr dra drb drd dre drl dro drp drr eaa eab ead eae eal eao eap ear eba ebb ebd ebe ebl ebo ebp ebr ed- eda edb edd ede edl edo edp edr eea eeb eed eee eel eeo eep eer ela elb eld ele ell elo elp elr eo- eoa eob eod eoe eol eoo eop eor ep- epa epb epd epe epl epo epp epr era erb erd ere erl ero erp err l-p la- laa lab lad lae lal lao lap lar lba lbb lbd lbe lbl lbo lbp lbr lda ldb ldd lde ldl ldo ldp ldr lea leb led lee lel leo lep ler lla llb lld lle lll llo llp llr loa lob lod loe lol loo lop lor lpa lpb lpd lpe lpl lpo lpp lpr lra lrb lrd lro lrp lrr oaa oab oad oae oal oao oap oar ob- oba obb obd obe obl obo obp obr oda odb odd ode odl odo odp odr oea oeb oed oee oel oeo oep oer ola olb old ole oll olo olp oo- ooa oob ood ool ooo oop oor op- opa opb opd ope opl opo opp opr or- ora orb ord ore orl oro orp orr p-p paa pab pad pae pal pao pap par pba pbb pbd pbe pbl pbo pbp pbr pda pdb pdd pde pdl pdo pdp pdr pea peb ped pee pel peo pep per pla plb pld ple pll plo plp plr poa pob pod poe pol poo pop por ppa ppb ppd ppe ppl ppo ppp ppr pra prb prd pre prl pro prp prr ra- raa rab rad rae ral rao rap rar rba rbb rbd rbe rbl rbo rbp rbr rda rdb rdd rde rdl rdo rdp rdr re- rea reb red ree rel reo rep rer rla rld rle rll rlo rlp rlr roa rob rod roe rol roo rop ror rpa rpb rpd rpe rpl rpo rpp rpr rra rrb rrd rrl rrp rrr