-al -er -ol -up a-a a-b aaa aab aae aal aao aap aar aau ab- aba abb abe abl abo abp abr abu aea aeb aee ael aeo aep aer aeu al- ala alb ale all alo alp alr alu aoa aob aoe aol aoo aop aor aou ap- apa apb ape apl apo app apr apu ar- ara arb are arl aro arp arr aru au- aua aub aue aul auo aup aur b-p b-u baa bab bae bal bao bap bar bau bba bbb bbe bbl bbo bbp bbr bbu be- bea beb bee bel beo bep ber beu bla blb ble bll blo blp blr blu boa bob boe bol boo bop bor bou bpa bpb bpe bpl bpo bpp bpr bpu bra brb bre brl bro brp brr bru bua bub bue bul buo bup bur buu eaa eab eae eal eao eap ear eau eba ebb ebe ebl ebo ebp ebr ebu eea eeb eee eel eeo eep eer ela elb ele ell elo elp elr elu eo- eoa eob eoe eol eoo eop eor eou ep- epa epb epe epl epo epp epr epu era erb ere erl ero erp err eru eu- eua eub eue eul eup eur l-p la- laa lab lae lal lao lap lar lau lba lbb lbe lbl lbo lbp lbr lbu lea leb lee lel leo lep ler leu lla llb lle lll llo llp llr llu loa lob loe lol loo lop lor lou lpa lpb lpe lpl lpo lpp lpr lpu lra lrb lro lrp lrr lru lua lub lue lul luo lup lur luu oaa oab oae oal oao oap oar oau ob- oba obb obe obl obo obp obr obu oea oeb oee oel oeo oep oer ola olb ole oll olo olp olu oo- ooa oob ool ooo oop oor op- opa opb ope opl opo opp opr or- ora orb ore orl oro orp orr oru ou- oua oue oul ouo oup our p-p paa pab pae pal pao pap par pau pba pbb pbe pbl pbo pbp pbr pbu pea peb pee pel peo pep per peu pla plb ple pll plo plp plr plu poa pob poe pol poo pop por pou ppa ppb ppe ppl ppo ppp ppr ppu pra prb pre prl pro prp prr pru pua pub pue pul pup pur puu ra- raa rab rae ral rao rap rar rau rba rbb rbe rbl rbo rbp rbr rbu re- rea reb ree rel reo rep rer reu rla rle rll rlo rlp rlr rlu roa rob roe rol roo rop ror rou rpa rpb rpe rpl rpo rpp rpr rpu rra rrb rrl rrp rrr rru rua rub rue ruo rup rur ruu ua- uaa uab uae ual uao uap uar uau uba ubb ube ubl ubo ubp ubr ubu uea ueb uee uel uep uer ula ulb ule ull ulo ulp ulr ulu uoa uob uoe uol uoo uop uor up- upa upb upe upo upp upr upu ur- ura urb ure url uro urp urr uru uua uue uur uuu