-er bbb bbd bbe bbg bbi bbo bbr bbs bbt bdb bdd bde bdg bdi bdo bdr bds bdt be- beb bed bee beg bei beo ber bes bet bgb bgd bge bgg bgi bgo bgr bgs bgt bi- bib bid bie big bii bio bir bis bit bob bod boe bog boi boo bor bos bot brb brd bre brg bri bro brr brs brt bsb bsd bse bsg bsi bso bsr bss bst btb btd bte btg bti bto btr bts btt dbb dbd dbe dbg dbi dbo dbr dbs dbt ddb ddd dde ddg ddi ddo ddr dds ddt de- deb ded dee deg dei deo der des det dgd dge dgg dgi dgr dgs dgt di- dib did die dig dii dio dir dis dit dob dod doe dog doi doo dor dos dot drb drd dre drg dri dro drr drs drt dsb dsd dse dsg dsi dso dsr dss dst dtb dtd dte dtg dti dto dtr dts dtt ebb ebd ebe ebg ebi ebo ebr ebs ebt ed- edb edd ede edg edi edo edr eds edt eeb eed eee eeg eeo eer ees eet egb egd ege egg egi ego egr egs egt eib eid eie eig eii eio eir eis eit eo- eob eod eoe eog eoi eoo eor eos eot erb erd ere erg eri ero err ers ert es- esb esd ese esg esi eso esr ess est etb etd ete etg eti eto etr ets ett g-d gbd gbe gbg gbi gbo gbr gbs gbt gdb gdd gde gdi gdo gdr gds gdt ge- geb ged gee geg gei geo ger ges get ggb ggd ggg ggi ggo ggr ggs ggt gib gid gie gig gii gio gir gis git gob god goe gog goi goo gor gos got grb grd gre grg gri gro grr grs grt gsb gsd gse gsg gsi gso gsr gss gst gtb gtd gte gtg gti gto gtr gts gtt i-d ibb ibd ibe ibg ibi ibo ibr ibs ibt idb idd ide idg idi ido idr ids idt ie- ied iee ieg iei ier ies iet igb igd ige igg igi igo igr igs igt iib iid iie iii iio iir iis iit io- iob iod ioe iog ioi ioo ior ios iot ir- irb ird ire irg iri iro irr irs irt is- isb isd ise isg isi iso isr iss ist itb itd ite itg iti ito its itt o-i ob- obb obd obe obg obi obo obr obs obt odb odd ode odg odi odo odr ods odt oeb oed oee oeg oei oeo oer oes oet ogd oge ogg ogi ogo ogs ogt oib oid oie oii oio oir ois oit oo- oob ood oog ooi ooo oor oos oot or- orb ord ore org ori oro orr ors ort os- osb osd ose osg osi oso osr oss ost ot- otb otd ote otg oti oto otr ots ott rbb rbd rbe rbg rbi rbo rbr rbs rbt rdb rdd rde rdg rdi rdo rdr rds rdt re- reb red ree reg rei reo rer res ret rgb rgd rge rgg rgi rgo rgr rgs rgt rib rid rie rig rii rio rir ris rit rob rod roe rog roi roo ror ros rot rrb rrd rrg rri rrr rrs rrt rsb rsd rse rsg rsi rso rsr rss rst rtb rtd rte rtg rti rto rtr rts rtt sbb sbd sbe sbg sbi sbo sbr sbs sbt sdb sdd sde sdg sdi sdo sdr sds sdt se- seb sed see seg sei seo ser ses set sgb sgd sge sgg sgi sgo sgr sgs sgt sib sid sie sig sii sio sir sis sit sob sod soe sog soi soo sor sos sot sr- srb srd sre srg sri sro srr srs srt ss- ssb ssd sse ssg ssi sso ssr sss sst stb std ste stg sti sto str sts stt tbb tbd tbe tbg tbi tbo tbr tbs tbt tdb tdd tde tdg tdi tdo tdr tds tdt te- teb ted tee teg tei teo ter tes tet tgb tge tgg tgi tgo tgr tgs tgt tib tid tie tig tii tio tir tis tit to- tob tod toe tog toi too tor tos tot trb trd tre trg tri tro trr trs trt tsb tsd tse tsg tsi tso tsr tss tst ttb ttd tte ttg tti tto ttr tts ttt