-al -ol a-a a-b aaa aab aad aah aal aan aao aar ab- aba abb abd abh abl abn abo abr ad- ada adb add adh adl adn ado adr aha ahb ahd ahh ahl ahn aho ahr al- ala alb ald alh all aln alo alr an- ana anb and anh anl ann ano anr aoa aob aod aoh aol aon aoo aor ar- ara arb ard arh arl arn aro arr baa bab bad bah bal ban bao bar bba bbb bbd bbh bbl bbn bbo bbr bda bdb bdd bdh bdl bdo bdr bha bhb bhd bhh bhl bho bhr bla blb bld blh bll bln blo blr bna bnb bnd bnl bnn bno bnr boa bob bod boh bol bon boo bor bra brb brd brh brl brn bro brr daa dab dad dah dal dan dao dar dba dbb dbd dbh dbl dbn dbo dbr dda ddb ddd ddh ddl ddn ddo ddr dh- dha dhb dhd dhh dhl dho dhr dl- dla dlb dld dlh dll dlo dlr dna dnb dnd dnh dnl dnn dno dnr doa dob dod doh dol don doo dor dra drb drd drl drn dro drr haa hab had hah hal han hao har hba hbb hbd hbh hbl hbn hbo hbr hda hdb hdd hdh hdl hdn hdo hdr hha hhb hhd hhh hhl hhn hho hhr hla hlb hld hlh hll hln hlo hlr hna hnb hnd hnh hnl hnn hno hoa hob hod hoh hol hon hoo hor hr- hra hrb hrd hrh hrl hrn hro hrr la- laa lab lad lah lal lan lao lar lba lbb lbd lbh lbl lbo lbr lda ldb ldd ldh ldl ldn ldo ldr lha lhb lhd lhh lho lhr lla llb lld lll lln llo llr lna lnb lnd lnh lnl lnn lno lnr loa lob lod loh lol lon loo lor lra lrb lrd lrh lrn lro lrr naa nab nad nah nal nan nao nar nba nbb nbd nbl nbn nbo nbr nda ndb ndd ndh ndl ndn ndo ndr nha nhb nhd nhh nhl nhn nhr nla nlb nld nlh nll nln nlo nlr nna nnb nnh nnl nnn nno no- noa nob nod noh nol non noo nor nra nrb nrd nrl nrn nro nrr oaa oab oad oah oal oan oao oar ob- oba obb obd obh obl obn obo obr oda odb odd odh odl odn odo odr oha ohd ohh ohl ohn oho ohr ola olb old oll oln olo on- ona onb ond onh onl onn ono onr oo- ooa oob ood ooh ool oon ooo oor or- ora orb ord orh orl orn oro orr ra- raa rab rad rah ral ran rao rar rba rbb rbd rbh rbl rbn rbo rbr rda rdb rdd rdh rdl rdn rdo rdr rh- rha rhb rhd rhh rhl rhn rho rhr rla rld rlh rll rln rlo rlr rna rnb rnd rnh rnn rno rnr roa rob rod roh rol ron roo ror rra rrb rrd rrh rrl rrn rrr