-al -ol -th a-a a-b a-t aaa aab aae aah aal aao aat ab- aba abb abe abh abl abo abt aea aeb aee aeh ael aeo aet aha ahb ahe ahh ahl aho aht al- ala alb ale alh all alo alt aoa aob aoe aoh aol aoo aot at- ata atb ate ath atl ato att baa bab bae bah bal bao bat bba bbb bbe bbh bbl bbo bbt be- bea beb bee beh bel beo bet bha bhb bhe bhh bhl bho bht bla blb ble blh bll blo blt boa bob boe boh bol boo bot bta btb bte bth btl bto btt eaa eab eae eah eal eao eat eba ebb ebe ebh ebl ebo ebt eea eeb eee eel eeo eet eha ehb ehe ehh ehl eho eht ela elb ele elh ell elo elt eo- eoa eob eoe eoh eol eoo eot eta etb ete eth etl eto ett haa hab hae hah hal hao hat hba hbb hbe hbh hbl hbo hbt he- hea heb hee heh hel heo het hha hhb hhe hhh hhl hho hht hla hlb hle hlh hll hlo hlt hoa hob hoe hoh hol hoo hot hta htb hte hth htl hto htt la- laa lab lae lah lal lao lat lba lbb lbe lbh lbl lbo lbt lea leb lee leh lel leo let lha lhb lhh lho lht lla llb lle lll llo llt loa lob loe loh lol loo lot lta ltb lte lth ltl lto ltt oaa oab oae oah oal oao oat ob- oba obb obe obh obl obo obt oea oeb oee oeh oel oeo oet oha ohe ohh ohl oho oht ola olb ole oll olo olt oo- ooa oob ooh ool ooo oot ot- ota otb ote oth otl oto ott taa tab tae tah tal tao tat tba tbb tbe tbh tbl tbo tbt te- tea teb tee teh tel teo tet th- tha thb the thh thl tho tht tla tle tlh tll tlo tlt to- toa tob toe toh tol too tot tta ttb tte tth ttl tto ttt