-al -ol a-a a-b aaa aab aad aal aao aas aau ab- aba abb abd abl abo abs abu ad- ada adb add adl ado ads adu al- ala alb ald all alo als alu aoa aob aod aol aoo aos aou as- asa asb asd asl aso ass asu au- aua aub aud aul auo aus b-u baa bab bad bal bao bas bau bba bbb bbd bbl bbo bbs bbu bda bdb bdd bdl bdo bds bdu bla blb bld bll blo bls blu boa bob bod bol boo bos bou bsa bsb bsd bsl bso bss bsu bua bub bud bul buo bus buu daa dab dad dal dao das dau dba dbb dbd dbl dbo dbs dbu dda ddb ddd ddl ddo dds ddu dl- dla dlb dld dll dlo dls dlu doa dob dod dol doo dos dou dsa dsb dsd dsl dso dss dsu dua dub dud dul duo dus la- laa lab lad lal lao las lau lba lbb lbd lbl lbo lbs lbu lda ldb ldd ldl ldo lds ldu lla llb lld lll llo lls llu loa lob lod lol loo los lou lsa lsb lsd lsl lso lss lsu lua lub lud lul luo lus luu oaa oab oad oal oao oas oau ob- oba obb obd obl obo obs obu oda odb odd odl odo ods odu ola olb old oll olo ols olu oo- ooa oob ood ool ooo oos os- osa osb osd osl oso oss osu ou- oua oud oul ouo ous saa sab sad sal sao sas sau sba sbb sbd sbl sbo sbs sbu sda sdb sdd sdl sdo sds sdu sla slb sld sll slo sls slu soa sob sod sol soo sos sou ss- ssa ssb ssd ssl sso sss ssu sua sub sud sul suo sus suu ua- uaa uab uad ual uao uas uau uba ubb ubl ubo ubs ubu uda udb udd udl udo uds udu ula ulb uld ull ulo uls ulu uoa uob uod uol uoo uos usa usb usd usl uso uss usu uua uus uuu