-al -ol -th a-a a-b a-t aaa aab aad aah aal aan aao aat ab- aba abb abd abh abl abn abo abt ad- ada adb add adh adl adn ado adt aha ahb ahd ahh ahl ahn aho aht al- ala alb ald alh all aln alo alt an- ana anb and anh anl ann ano ant aoa aob aod aoh aol aon aoo aot at- ata atb atd ath atl atn ato att baa bab bad bah bal ban bao bat bba bbb bbd bbh bbl bbn bbo bbt bda bdb bdd bdh bdl bdo bdt bha bhb bhd bhh bhl bho bht bla blb bld blh bll bln blo blt bna bnb bnd bnl bnn bno bnt boa bob bod boh bol bon boo bot bta btb btd bth btl btn bto btt daa dab dad dah dal dan dao dat dba dbb dbd dbh dbl dbn dbo dbt dda ddb ddd ddh ddl ddn ddo ddt dh- dha dhb dhd dhh dhl dho dht dl- dla dlb dld dlh dll dlo dlt dna dnb dnd dnh dnl dnn dno dnt doa dob dod doh dol don doo dot dta dtb dtd dth dtl dtn dto dtt haa hab had hah hal han hao hat hba hbb hbd hbh hbl hbn hbo hbt hda hdb hdd hdh hdl hdn hdo hdt hha hhb hhd hhh hhl hhn hho hht hla hlb hld hlh hll hln hlo hlt hna hnb hnd hnh hnl hnn hno hnt hoa hob hod hoh hol hon hoo hot hta htb htd hth htl htn hto htt la- laa lab lad lah lal lan lao lat lba lbb lbd lbh lbl lbo lbt lda ldb ldd ldh ldl ldn ldo ldt lha lhb lhd lhh lho lht lla llb lld lll lln llo llt lna lnb lnd lnh lnl lnn lno lnt loa lob lod loh lol lon loo lot lta ltb ltd lth ltl lto ltt naa nab nad nah nal nan nao nat nba nbb nbd nbl nbn nbo nbt nda ndb ndd ndh ndl ndn ndo ndt nha nhb nhd nhh nhl nhn nht nla nlb nld nlh nll nln nlo nlt nna nnb nnh nnl nnn nno nnt no- noa nob nod noh nol non noo not nta ntb ntd nth ntn nto ntt oaa oab oad oah oal oan oao oat ob- oba obb obd obh obl obn obo obt oda odb odd odh odl odn odo odt oha ohd ohh ohl ohn oho oht ola olb old oll oln olo olt on- ona onb ond onh onl onn ono ont oo- ooa oob ood ooh ool oon ooo oot ot- ota otb otd oth otl otn oto ott taa tab tad tah tal tan tao tat tba tbb tbd tbh tbl tbn tbo tbt tda tdb tdd tdh tdl tdn tdo tdt th- tha thb thd thh thl thn tho tht tla tld tlh tll tln tlo tlt tna tnb tnd tnh tnl tnn tno tnt to- toa tob tod toh tol ton too tot tta ttb ttd tth ttl ttn tto ttt