-er b-u bbb bbd bbe bbg bbi bbo bbr bbt bbu bdb bdd bde bdg bdi bdo bdr bdt bdu be- beb bed bee beg bei beo ber bet beu bgb bgd bge bgg bgi bgo bgr bgt bgu bi- bib bid bie big bii bio bir bit biu bob bod boe bog boi boo bor bot bou brb brd bre brg bri bro brr brt bru btb btd bte btg bti bto btr btt btu bub bud bue bug bui buo bur but buu dbb dbd dbe dbg dbi dbo dbr dbt dbu ddb ddd dde ddg ddi ddo ddr ddt ddu de- deb ded dee deg dei deo der det deu dgd dge dgg dgi dgr dgt dgu di- dib did die dig dii dio dir dit diu dob dod doe dog doi doo dor dot dou drb drd dre drg dri dro drr drt dru dtb dtd dte dtg dti dto dtr dtt dtu dub dud due dug dui duo dur dut ebb ebd ebe ebg ebi ebo ebr ebt ebu ed- edb edd ede edg edi edo edr edt edu eeb eed eee eeg eeo eer eet egb egd ege egg egi ego egr egt egu eib eid eie eig eii eio eir eit eiu eo- eob eod eoe eog eoi eoo eor eot eou erb erd ere erg eri ero err ert eru etb etd ete etg eti eto etr ett etu eu- eub eud eue eug eui eur eut g-d gbd gbe gbg gbi gbo gbr gbt gbu gdb gdd gde gdi gdo gdr gdt gdu ge- geb ged gee geg gei geo ger get geu ggb ggd ggg ggi ggo ggr ggt ggu gib gid gie gig gii gio gir git giu gob god goe gog goi goo gor got gou grb grd gre grg gri gro grr grt gru gtb gtd gte gtg gti gto gtr gtt gtu gu- gub gud gue gug gui guo gur gut guu i-d ibb ibd ibe ibg ibi ibo ibr ibt ibu idb idd ide idg idi ido idr idt idu ie- ied iee ieg iei ier iet igb igd ige igg igi igo igr igt igu iib iid iie iii iio iir iit iiu io- iob iod ioe iog ioi ioo ior iot iou ir- irb ird ire irg iri iro irr irt iru itb itd ite itg iti ito itt itu iu- iub iud iue iug iui iur iut o-i ob- obb obd obe obg obi obo obr obt obu odb odd ode odg odi odo odr odt odu oeb oed oee oeg oei oeo oer oet ogd oge ogg ogi ogo ogt oib oid oie oii oio oir oit oiu oo- oob ood oog ooi ooo oor oot or- orb ord ore org ori oro orr ort oru ot- otb otd ote otg oti oto otr ott otu ou- oud oue oui ouo our out rbb rbd rbe rbg rbi rbo rbr rbt rbu rdb rdd rde rdg rdi rdo rdr rdt rdu re- reb red ree reg rei reo rer ret reu rgb rgd rge rgg rgi rgo rgr rgt rib rid rie rig rii rio rir rit rob rod roe rog roi roo ror rot rou rrb rrd rrg rri rrr rrt rru rtb rtd rte rtg rti rto rtr rtt rtu rub rud rue rug rui ruo rur rut ruu tbb tbd tbe tbg tbi tbo tbr tbt tbu tdb tdd tde tdg tdi tdo tdr tdt tdu te- teb ted tee teg tei teo ter tet teu tgb tge tgg tgi tgo tgr tgt tgu tib tid tie tig tii tio tir tit tiu to- tob tod toe tog toi too tor tot tou trb trd tre trg tri tro trr trt tru ttb ttd tte ttg tti tto ttr ttt ttu tub tud tue tug tui tuo tur tut tuu ubb ube ubg ubi ubo ubr ubt ubu udb udd ude udg udi udo udr udt udu ueb ued uee ueg uei uer uet ugb uge ugg ugi ugo ugr ugt ugu uib uid uie uig uii uio uir uit uiu uob uod uoe uog uoo uor uot ur- urb urd ure urg uri uro urr urt uru utb utd ute uti uto utr utt utu uue uug uur uut uuu