-al -ol a-a a-b aaa aab aad aae aal aao aau aax ab- aba abb abd abe abl abo abu abx ad- ada adb add ade adl ado adu adx aea aeb aed aee ael aeo aeu aex al- ala alb ald ale all alo alu alx aoa aob aod aoe aol aoo aou aox au- aua aub aud aue aul auo aux ax- axa axe axl axo axx b-u baa bab bad bae bal bao bau bax bba bbb bbd bbe bbl bbo bbu bbx bda bdb bdd bde bdl bdo bdu bdx be- bea beb bed bee bel beo beu bex bla blb bld ble bll blo blu blx boa bob bod boe bol boo bou box bua bub bud bue bul buo buu bux bxb bxd bxl bxo bxx daa dab dad dae dal dao dau dax dba dbb dbd dbe dbl dbo dbu dbx dda ddb ddd dde ddl ddo ddu ddx de- dea deb ded dee del deo deu dex dl- dla dlb dld dle dll dlo dlu dlx doa dob dod doe dol doo dou dox dua dub dud due dul duo dux dxd dxl dxo dxx eaa eab ead eae eal eao eau eax eba ebb ebd ebe ebl ebo ebu ebx ed- eda edb edd ede edl edo edu edx eea eeb eed eee eel eeo eex ela elb eld ele ell elo elu elx eo- eoa eob eod eoe eol eoo eou eu- eua eub eud eue eul eux ex- exa exd exe exl exo exu exx la- laa lab lad lae lal lao lau lax lba lbb lbd lbe lbl lbo lbu lbx lda ldb ldd lde ldl ldo ldu lea leb led lee lel leo leu lex lla llb lld lle lll llo llu loa lob lod loe lol loo lou lox lua lub lud lue lul luo luu lux lxd lxo lxx oaa oab oad oae oal oao oau oax ob- oba obb obd obe obl obo obu obx oda odb odd ode odl odo odu oea oeb oed oee oel oeo oex ola olb old ole oll olo olu oo- ooa oob ood ool ooo oox ou- oua oud oue oul ouo ox- oxa oxb oxo oxx ua- uaa uab uad uae ual uao uau uba ubb ube ubl ubo ubu ubx uda udb udd ude udl udo udu udx uea ueb ued uee uel ula ulb uld ule ull ulo ulu uoa uob uod uoe uol uoo uox uua uue uuu uxb uxo uxu xaa xad xal xau xbe xbl xbx xda xdb xde xed xee xel xeu xex xla xlb xld xoa xod xoo xox xue xul xxl xxo xxx