-er b-u bbb bbd bbe bbh bbn bbo bbr bbu bdb bdd bde bdh bdo bdr bdu be- beb bed bee beh ben beo ber beu bhb bhd bhe bhh bho bhr bhu bnb bnd bne bnn bno bnr bnu bob bod boe boh bon boo bor bou brb brd bre brh brn bro brr bru bub bud bue buh bun buo bur buu dbb dbd dbe dbh dbn dbo dbr dbu ddb ddd dde ddh ddn ddo ddr ddu de- deb ded dee deh den deo der deu dh- dhb dhd dhe dhh dho dhr dhu dnb dnd dne dnh dnn dno dnr dob dod doe doh don doo dor dou drb drd dre drn dro drr dru dub dud due duh dun duo dur ebb ebd ebe ebh ebn ebo ebr ebu ed- edb edd ede edh edn edo edr edu eeb eed eee een eeo eer ehb ehd ehe ehh ehn eho ehr ehu en- enb end ene enh enn eno enr enu eo- eob eod eoe eoh eon eoo eor eou erb erd ere erh ern ero err eru eu- eub eud eue eun eur hbb hbd hbe hbh hbn hbo hbr hbu hdb hdd hde hdh hdn hdo hdr hdu he- heb hed hee heh hen heo her heu hhb hhd hhe hhh hhn hho hhr hhu hnb hnd hne hnh hnn hno hnu hob hod hoe hoh hon hoo hor hou hr- hrb hrd hre hrh hrn hro hrr hru hub hud hue huh hun huo hur huu nbb nbd nbe nbn nbo nbr nbu ndb ndd nde ndh ndn ndo ndr ndu ne- neb ned nee neh nen neo ner neu nhb nhd nhe nhh nhn nhr nhu nnb nne nnh nnn nno nnu no- nob nod noe noh non noo nor nou nrb nrd nre nrn nro nrr nru nub nud nue nuh nun nuo nur nuu ob- obb obd obe obh obn obo obr obu odb odd ode odh odn odo odr odu oeb oed oee oeh oen oeo oer ohd ohe ohh ohn oho ohr ohu on- onb ond one onh onn ono onr onu oo- oob ood ooh oon ooo oor or- orb ord ore orh orn oro orr oru ou- oud oue ouh oun ouo our rbb rbd rbe rbh rbn rbo rbr rbu rdb rdd rde rdh rdn rdo rdr rdu re- reb red ree reh ren reo rer reu rh- rhb rhd rhe rhh rhn rho rhr rhu rnb rnd rnh rnn rno rnr rnu rob rod roe roh ron roo ror rou rrb rrd rrh rrn rrr rru rub rud rue ruh run ruo rur ruu ubb ube ubh ubn ubo ubr ubu udb udd ude udn udo udr udu ueb ued uee ueh uen uer uhb uhd uhe uhh uho uhr uhu un- unb und une unh unn uno unr unu uob uod uoe uon uoo uor ur- urb urd ure urn uro urr uru uue uun uur uuu