-al -ol a-a a-b aaa aab aad aae aaf aal aan aao aau ab- aba abb abd abe abf abl abn abo abu ad- ada adb add ade adf adl adn ado adu aea aeb aed aee aef ael aen aeo aeu af- afa afb afd afe aff afl afn afo afu al- ala alb ald ale alf all aln alo alu an- ana anb and ane anf anl ann ano anu aoa aob aod aoe aof aol aon aoo aou au- aua aub aud aue auf aul aun auo b-u baa bab bad bae baf bal ban bao bau bba bbb bbd bbe bbf bbl bbn bbo bbu bda bdb bdd bde bdf bdl bdo bdu be- bea beb bed bee bef bel ben beo beu bfa bfb bfd bfe bff bfl bfn bfo bfu bla blb bld ble blf bll bln blo blu bna bnb bnd bne bnf bnl bnn bno bnu boa bob bod boe bof bol bon boo bou bua bub bud bue buf bul bun buo buu daa dab dad dae daf dal dan dao dau dba dbb dbd dbe dbf dbl dbn dbo dbu dda ddb ddd dde ddf ddl ddn ddo ddu de- dea deb ded dee def del den deo deu dfa dfb dfd dfe dff dfl dfn dfo dfu dl- dla dlb dld dle dlf dll dlo dlu dna dnb dnd dne dnf dnl dnn dno doa dob dod doe dof dol don doo dou dua dub dud due duf dul dun duo eaa eab ead eae eaf eal ean eao eau eba ebb ebd ebe ebf ebl ebn ebo ebu ed- eda edb edd ede edf edl edn edo edu eea eeb eed eee eef eel een eeo ef- efa efb efd efe eff efl efo ela elb eld ele elf ell eln elo elu en- ena enb end ene enf enl enn eno enu eo- eoa eob eod eoe eof eol eon eoo eou eu- eua eub eud eue euf eul eun faa fab fad fae faf fal fan fao fau fba fbb fbd fbe fbf fbl fbn fbo fbu fda fdb fdd fde fdf fdl fdn fdo fdu fea feb fed fee fef fel fen feo feu ffa ffd ffe fff ffl ffn ffo ffu fla flb fld fle flf fll fln flo flu fna fnb fnd fne fnf fnl fnn fnu foa fob foe fof fol fon foo fou fua fub fud fue fuf ful fun fuo fuu la- laa lab lad lae laf lal lan lao lau lba lbb lbd lbe lbf lbl lbo lbu lda ldb ldd lde ldf ldl ldn ldo ldu lea leb led lee lef lel len leo leu lfa lfb lfd lfe lff lfl lfn lfo lfu lla llb lld lle llf lll lln llo llu lna lnb lnd lne lnl lnn lno lnu loa lob lod loe lof lol lon loo lou lua lub lud lue luf lul lun luo luu naa nab nad nae naf nal nan nao nau nba nbb nbd nbe nbf nbl nbn nbo nbu nda ndb ndd nde ndf ndl ndn ndo ndu ne- nea neb ned nee nef nel nen neo neu nfa nfb nfd nfe nff nfl nfn nfo nfu nla nlb nld nle nlf nll nln nlo nlu nna nnb nne nnf nnl nnn nno nnu no- noa nob nod noe nof nol non noo nou nua nub nud nue nul nun nuo nuu oaa oab oad oae oaf oal oan oao oau ob- oba obb obd obe obf obl obn obo obu oda odb odd ode odf odl odn odo odu oea oeb oed oee oef oel oen oeo of- ofa ofb ofd ofe off ofl ofn ofo ofu ola olb old ole olf oll oln olo olu on- ona onb ond one onf onl onn ono onu oo- ooa oob ood oof ool oon ooo ou- oua oud oue ouf oul oun ouo ua- uaa uab uad uae uaf ual uan uao uau uba ubb ube ubf ubl ubn ubo ubu uda udb udd ude udf udl udn udo udu uea ueb ued uee uef uel uen ufa ufd ufe uff ufl ufn ufo ufu ula ulb uld ule ulf ull uln ulo ulu un- una unb und une unf unl unn uno unu uoa uob uod uoe uol uon uoo uua uue uun uuu