-er -th bbb bbe bbh bbn bbo bbr bbt bbx be- beb bee beh ben beo ber bet bex bez bhb bhe bhh bho bhr bht bhx bnb bne bnn bno bnr bnt bnx bnz bob boe boh bon boo bor bot box boz brb bre brh brn bro brr brt brx brz btb bte bth btn bto btr btt btx btz bxb bxn bxo bxx bze bzh bzn bzo bzr bzz ebb ebe ebh ebn ebo ebr ebt ebx eeb eee een eeo eer eet eex ehb ehe ehh ehn eho ehr eht en- enb ene enh enn eno enr ent enz eo- eob eoe eoh eon eoo eor eot erb ere erh ern ero err ert erz etb ete eth etn eto etr ett etx etz ex- exe exh exo exr ext exx eze ezh ezo ezr ezz hbb hbe hbh hbn hbo hbr hbt hbx hbz he- heb hee heh hen heo her het hex hez hhb hhe hhh hhn hho hhr hht hhz hnb hne hnh hnn hno hnt hnz hob hoe hoh hon hoo hor hot hox hr- hrb hre hrh hrn hro hrr hrt hrz htb hte hth htn hto htr htt htx htz hze hzo hzt nbb nbe nbn nbo nbr nbt nbx ne- neb nee neh nen neo ner net nex nez nhb nhe nhh nhn nhr nht nhz nnb nne nnh nnn nno nnt nnz no- nob noe noh non noo nor not nox noz nrb nre nrn nro nrr nrt nrx nrz ntb nte nth ntn nto ntr ntt ntx ntz nxt nzb nze nzo nzz ob- obb obe obh obn obo obr obt obx oeb oee oeh oen oeo oer oet oex ohe ohh ohn oho ohr oht on- onb one onh onn ono onr ont onx oo- oob ooh oon ooo oor oot oox or- orb ore orh orn oro orr ort orx orz ot- otb ote oth otn oto otr ott otz ox- oxb oxn oxo oxt oxx oze ozo ozt ozz rbb rbe rbh rbn rbo rbr rbt rbx re- reb ree reh ren reo rer ret rex rez rh- rhb rhe rhh rhn rho rhr rht rnb rnh rnn rno rnr rnt rnz rob roe roh ron roo ror rot rox roz rrb rrh rrn rrr rrt rtb rte rtn rto rtr rtt rtx rtz rxr rzb rze rzo t-x tbb tbe tbh tbn tbo tbr tbt tbz te- teb tee teh ten teo ter tet tex tez th- thb the thh thn tho thr tht thx thz tnb tne tnh tnn tno tnr tnt tnx tnz to- tob toe toh ton too tor tot tox toz trb tre trh trn tro trr trt trx trz ttb tte tth ttn tto ttr ttt ttx txe txn txt tze xbe xbr xbx xee xen xer xet xex xht xno xon xoo xor xot xox xrt xrx xtr xtx xxo xxx zbb zbr zbt zeb zee zeh zen zeo zer zet zez zhe zho zhr zne znn zno zo- zob zoe zon zoo zor zot zox zrh zro zte ztr zxx zzr zzt zzx zzz