-al -er -ol a-a a-b aaa aab aae aal aao aap aar ab- aba abb abe abl abo abp abr aea aeb aee ael aeo aep aer al- ala alb ale all alo alp alr aoa aob aoe aol aoo aop aor ap- apa apb ape apl apo app apr ar- ara arb are arl aro arp arr b-p baa bab bae bal bao bap bar bba bbb bbe bbl bbo bbp bbr be- bea beb bee bel beo bep ber bla blb ble bll blo blp blr boa bob boe bol boo bop bor bpa bpb bpe bpl bpo bpp bpr bra brb bre brl bro brp brr eaa eab eae eal eao eap ear eba ebb ebe ebl ebo ebp ebr eea eeb eee eel eeo eep eer ela elb ele ell elo elp elr eo- eoa eob eoe eol eoo eop eor ep- epa epb epe epl epo epp epr era erb ere erl ero erp err l-p la- laa lab lae lal lao lap lar lba lbb lbe lbl lbo lbp lbr lea leb lee lel leo lep ler lla llb lle lll llo llp llr loa lob loe lol loo lop lor lpa lpb lpe lpl lpo lpp lpr lra lrb lro lrp lrr oaa oab oae oal oao oap oar ob- oba obb obe obl obo obp obr oea oeb oee oel oeo oep oer ola olb ole oll olo olp oo- ooa oob ool ooo oop oor op- opa opb ope opl opo opp opr or- ora orb ore orl oro orp orr p-p paa pab pae pal pao pap par pba pbb pbe pbl pbo pbp pbr pea peb pee pel peo pep per pla plb ple pll plo plp plr poa pob poe pol poo pop por ppa ppb ppe ppl ppo ppp ppr pra prb pre prl pro prp prr ra- raa rab rae ral rao rap rar rba rbb rbe rbl rbo rbp rbr re- rea reb ree rel reo rep rer rla rle rll rlo rlp rlr roa rob roe rol roo rop ror rpa rpb rpe rpl rpo rpp rpr rra rrb rrl rrp rrr