-al -ol a-a a-b a-t aaa aab aad aal aan aao aat aau ab- aba abb abd abl abn abo abt abu ad- ada adb add adl adn ado adt adu al- ala alb ald all aln alo alt alu an- ana anb and anl ann ano ant anu aoa aob aod aol aon aoo aot aou at- ata atb atd atl atn ato att atu au- aua aub aud aul aun auo aut b-u baa bab bad bal ban bao bat bau bba bbb bbd bbl bbn bbo bbt bbu bda bdb bdd bdl bdo bdt bdu bla blb bld bll bln blo blt blu bna bnb bnd bnl bnn bno bnt bnu boa bob bod bol bon boo bot bou bta btb btd btl btn bto btt btu bua bub bud bul bun buo but buu daa dab dad dal dan dao dat dau dba dbb dbd dbl dbn dbo dbt dbu dda ddb ddd ddl ddn ddo ddt ddu dl- dla dlb dld dll dlo dlt dlu dna dnb dnd dnl dnn dno dnt doa dob dod dol don doo dot dou dta dtb dtd dtl dtn dto dtt dtu dua dub dud dul dun duo dut la- laa lab lad lal lan lao lat lau lba lbb lbd lbl lbo lbt lbu lda ldb ldd ldl ldn ldo ldt ldu lla llb lld lll lln llo llt llu lna lnb lnd lnl lnn lno lnt lnu loa lob lod lol lon loo lot lou lta ltb ltd ltl lto ltt ltu lua lub lud lul lun luo lut luu naa nab nad nal nan nao nat nau nba nbb nbd nbl nbn nbo nbt nbu nda ndb ndd ndl ndn ndo ndt ndu nla nlb nld nll nln nlo nlt nlu nna nnb nnl nnn nno nnt nnu no- noa nob nod nol non noo not nou nta ntb ntd ntn nto ntt ntu nua nub nud nul nun nuo nut nuu oaa oab oad oal oan oao oat oau ob- oba obb obd obl obn obo obt obu oda odb odd odl odn odo odt odu ola olb old oll oln olo olt olu on- ona onb ond onl onn ono ont onu oo- ooa oob ood ool oon ooo oot ot- ota otb otd otl otn oto ott otu ou- oua oud oul oun ouo out taa tab tad tal tan tao tat tau tba tbb tbd tbl tbn tbo tbt tbu tda tdb tdd tdl tdn tdo tdt tdu tla tld tll tln tlo tlt tlu tna tnb tnd tnl tnn tno tnt to- toa tob tod tol ton too tot tou tta ttb ttd ttl ttn tto ttt ttu tua tub tud tul tun tuo tut tuu ua- uaa uab uad ual uan uao uat uau uba ubb ubl ubn ubo ubt ubu uda udb udd udl udn udo udt udu ula ulb uld ull uln ulo ult ulu un- una unb und unl unn uno unt unu uoa uob uod uol uon uoo uot uta utb utd utl utn uto utt utu uua uun uut uuu