-er -th bbb bbe bbh bbn bbo bbr bbt be- beb bee beh ben beo ber bet bhb bhe bhh bho bhr bht bnb bne bnn bno bnr bnt bob boe boh bon boo bor bot brb bre brh brn bro brr brt btb bte bth btn bto btr btt ebb ebe ebh ebn ebo ebr ebt eeb eee een eeo eer eet ehb ehe ehh ehn eho ehr eht en- enb ene enh enn eno enr ent eo- eob eoe eoh eon eoo eor eot erb ere erh ern ero err ert etb ete eth etn eto etr ett hbb hbe hbh hbn hbo hbr hbt he- heb hee heh hen heo her het hhb hhe hhh hhn hho hhr hht hnb hne hnh hnn hno hnt hob hoe hoh hon hoo hor hot hr- hrb hre hrh hrn hro hrr hrt htb hte hth htn hto htr htt nbb nbe nbn nbo nbr nbt ne- neb nee neh nen neo ner net nhb nhe nhh nhn nhr nht nnb nne nnh nnn nno nnt no- nob noe noh non noo nor not nrb nre nrn nro nrr nrt ntb nte nth ntn nto ntr ntt ob- obb obe obh obn obo obr obt oeb oee oeh oen oeo oer oet ohe ohh ohn oho ohr oht on- onb one onh onn ono onr ont oo- oob ooh oon ooo oor oot or- orb ore orh orn oro orr ort ot- otb ote oth otn oto otr ott rbb rbe rbh rbn rbo rbr rbt re- reb ree reh ren reo rer ret rh- rhb rhe rhh rhn rho rhr rht rnb rnh rnn rno rnr rnt rob roe roh ron roo ror rot rrb rrh rrn rrr rrt rtb rte rtn rto rtr rtt tbb tbe tbh tbn tbo tbr tbt te- teb tee teh ten teo ter tet th- thb the thh thn tho thr tht tnb tne tnh tnn tno tnr tnt to- tob toe toh ton too tor tot trb tre trh trn tro trr trt ttb tte tth ttn tto ttr ttt