b-p bbb bbd bbe bbk bbo bbp bbs bbt bdb bdd bde bdk bdo bdp bds bdt be- beb bed bee bek beo bep bes bet bkb bke bkk bko bkp bks bkt bob bod boe bok boo bop bos bot bpb bpd bpe bpo bpp bps bpt bsb bsd bse bsk bso bsp bss bst btb btd bte btk bto btp bts btt dbb dbd dbe dbk dbo dbp dbs dbt ddb ddd dde ddk ddo ddp dds ddt de- deb ded dee dek deo dep des det dkb dke dkk dko dkp dks dkt dob dod doe dok doo dop dos dot dpb dpd dpe dpk dpo dpp dps dpt dsb dsd dse dsk dso dsp dss dst dtb dtd dte dtk dto dtp dts dtt ebb ebd ebe ebk ebo ebp ebs ebt ed- edb edd ede edk edo edp eds edt eeb eed eee eek eeo eep ees eet ekb ekd eke eko ekp eks ekt eo- eob eod eoe eok eoo eop eos eot ep- epb epd epe epo epp eps ept es- esb esd ese esk eso esp ess est etb etd ete etk eto etp ets ett k-t kbb kbd kbe kbk kbo kbp kbs kdb kde kdk kdo kdp kds kdt ke- keb ked kee kek keo kep kes ket kkb kke kkk kkp kks kkt kob kod koe kok koo kop kos kot kpd kpe kpk kpo kpp kps kpt ksb ksd kse ksk kso ksp kss kst ktb kte ktk kto ktp kts ktt ob- obb obd obe obk obo obp obs obt odb odd ode odo odp ods odt oeb oed oee oeo oep oes oet okb okd oke okk oko okp oks oo- oob ood ook ooo oop oos oot op- opb opd ope opk opo opp ops opt os- osb osd ose osk oso osp oss ost ot- otb otd ote otk oto otp ots ott p-p pbb pbd pbe pbk pbo pbp pbs pbt pdb pdd pde pdk pdo pdp pds pdt peb ped pee pek peo pep pes pet pkb pkd pke pko pkp pks pkt pob pod poe pok poo pop pos pot ppb ppd ppe ppk ppo ppp pps ppt ps- psb psd pse psk pso psp pss pst pt- ptb ptd pte ptk pto ptp pts ptt sbb sbd sbe sbk sbo sbp sbs sbt sdb sdd sde sdk sdo sdp sds sdt se- seb sed see sek seo sep ses set sk- skb skd ske skk sko skp sks skt sob sod soe sok soo sop sos sot spb spd spe spk spo spp sps spt ss- ssb ssd sse ssk sso ssp sss sst stb std ste stk sto stp sts stt tbb tbd tbe tbk tbo tbp tbs tbt tdb tdd tde tdk tdo tdp tds tdt te- teb ted tee tek teo tep tes tet tkb tke tkk tko tkp tks tkt to- tob tod toe tok too top tos tot tpb tpd tpe tpk tpo tpp tps tpt tsb tsd tse tsk tso tsp tss tst ttb ttd tte ttk tto ttp tts ttt