-al -ol a-a a-b aaa aab aad aae aal aao aas aau ab- aba abb abd abe abl abo abs abu ad- ada adb add ade adl ado ads adu aea aeb aed aee ael aeo aes aeu al- ala alb ald ale all alo als alu aoa aob aod aoe aol aoo aos aou as- asa asb asd ase asl aso ass asu au- aua aub aud aue aul auo aus b-u baa bab bad bae bal bao bas bau bba bbb bbd bbe bbl bbo bbs bbu bda bdb bdd bde bdl bdo bds bdu be- bea beb bed bee bel beo bes beu bla blb bld ble bll blo bls blu boa bob bod boe bol boo bos bou bsa bsb bsd bse bsl bso bss bsu bua bub bud bue bul buo bus buu daa dab dad dae dal dao das dau dba dbb dbd dbe dbl dbo dbs dbu dda ddb ddd dde ddl ddo dds ddu de- dea deb ded dee del deo des deu dl- dla dlb dld dle dll dlo dls dlu doa dob dod doe dol doo dos dou dsa dsb dsd dse dsl dso dss dsu dua dub dud due dul duo dus eaa eab ead eae eal eao eas eau eba ebb ebd ebe ebl ebo ebs ebu ed- eda edb edd ede edl edo eds edu eea eeb eed eee eel eeo ees ela elb eld ele ell elo els elu eo- eoa eob eod eoe eol eoo eos eou es- esa esb esd ese esl eso ess esu eu- eua eub eud eue eul eus la- laa lab lad lae lal lao las lau lba lbb lbd lbe lbl lbo lbs lbu lda ldb ldd lde ldl ldo lds ldu lea leb led lee lel leo les leu lla llb lld lle lll llo lls llu loa lob lod loe lol loo los lou lsa lsb lsd lse lsl lso lss lsu lua lub lud lue lul luo lus luu oaa oab oad oae oal oao oas oau ob- oba obb obd obe obl obo obs obu oda odb odd ode odl odo ods odu oea oeb oed oee oel oeo oes ola olb old ole oll olo ols olu oo- ooa oob ood ool ooo oos os- osa osb osd ose osl oso oss osu ou- oua oud oue oul ouo ous saa sab sad sae sal sao sas sau sba sbb sbd sbe sbl sbo sbs sbu sda sdb sdd sde sdl sdo sds sdu se- sea seb sed see sel seo ses seu sla slb sld sle sll slo sls slu soa sob sod soe sol soo sos sou ss- ssa ssb ssd sse ssl sso sss ssu sua sub sud sue sul suo sus suu ua- uaa uab uad uae ual uao uas uau uba ubb ube ubl ubo ubs ubu uda udb udd ude udl udo uds udu uea ueb ued uee uel ues ula ulb uld ule ull ulo uls ulu uoa uob uod uoe uol uoo uos usa usb usd use usl uso uss usu uua uue uus uuu