-th b-p bbb bbe bbh bbo bbp bbt bbx be- beb bee beh beo bep bet bex bhb bhe bhh bho bhp bht bhx bob boe boh boo bop bot box bpb bpe bph bpo bpp bpt bpx btb bte bth bto btp btt btx bxb bxo bxx ebb ebe ebh ebo ebp ebt ebx eeb eee eeo eep eet eex ehb ehe ehh eho ehp eht eo- eob eoe eoh eoo eop eot ep- epb epe eph epo epp ept epx etb ete eth eto etp ett etx ex- exe exh exo exp ext exx hbb hbe hbh hbo hbp hbt hbx he- heb hee heh heo hep het hex hhb hhe hhh hho hhp hht hob hoe hoh hoo hop hot hox hpb hpe hph hpo hpp hpt htb hte hth hto htp htt htx ob- obb obe obh obo obp obt obx oeb oee oeh oeo oep oet oex ohe ohh oho ohp oht oo- oob ooh ooo oop oot oox op- opb ope oph opo opp opt opx ot- otb ote oth oto otp ott ox- oxb oxo oxt oxx p-p pbb pbe pbo pbp pbt pbx peb pee peh peo pep pet pex phb phe pho php pht phx pob poe poh poo pop pot pox ppb ppe pph ppo ppp ppt ppx pt- ptb pte pth pto ptp ptt ptx pxe pxt t-x tbb tbe tbh tbo tbp tbt te- teb tee teh teo tep tet tex th- thb the thh tho thp tht thx to- tob toe toh too top tot tox tpb tpe tph tpo tpp tpt tpx ttb tte tth tto ttp ttt ttx txe txt xbe xbx xee xep xet xex xhp xht xoo xop xot xox xpb xpe xpo xpp xpt xtp xtx xxo xxp xxx