-ol -th bbb bbe bbh bbl bbo bbt bbx be- beb bee beh bel beo bet bex bhb bhe bhh bhl bho bht bhx blb ble blh bll blo blt blx bob boe boh bol boo bot box btb bte bth btl bto btt btx bxb bxl bxo bxx ebb ebe ebh ebl ebo ebt ebx eeb eee eel eeo eet eex ehb ehe ehh ehl eho eht elb ele elh ell elo elt elx eo- eob eoe eoh eol eoo eot etb ete eth etl eto ett etx ex- exe exh exl exo ext exx hbb hbe hbh hbl hbo hbt hbx he- heb hee heh hel heo het hex hhb hhe hhh hhl hho hht hlb hle hlh hll hlo hlt hlx hob hoe hoh hol hoo hot hox htb hte hth htl hto htt htx hxl lbb lbe lbh lbl lbo lbt lbx leb lee leh lel leo let lex lhb lhh lho lht lhx llb lle lll llo llt lob loe loh lol loo lot lox ltb lte lth ltl lto ltt ltx lxo lxx ob- obb obe obh obl obo obt obx oeb oee oeh oel oeo oet oex ohe ohh ohl oho oht olb ole oll olo olt oo- oob ooh ool ooo oot oox ot- otb ote oth otl oto ott ox- oxb oxo oxt oxx t-x tbb tbe tbh tbl tbo tbt te- teb tee teh tel teo tet tex th- thb the thh thl tho tht thx tle tlh tll tlo tlt tlx to- tob toe toh tol too tot tox ttb tte tth ttl tto ttt ttx txe txl txt xbe xbl xbx xee xel xet xex xht xlb xlt xoo xot xox xtx xxl xxo xxx