-er -ol bbb bbd bbe bbh bbi bbk bbl bbo bbr bbs bdb bdd bde bdh bdi bdk bdl bdo bdr bds be- beb bed bee beh bei bek bel beo ber bes bhb bhd bhe bhh bhi bhk bhl bho bhr bhs bi- bib bid bie bih bii bik bil bio bir bis bkb bke bkk bkl bko bkr bks blb bld ble blh bli blk bll blo blr bls bob bod boe boh boi bok bol boo bor bos brb brd bre brh bri brk brl bro brr brs bsb bsd bse bsh bsi bsk bsl bso bsr bss dbb dbd dbe dbh dbi dbk dbl dbo dbr dbs ddb ddd dde ddh ddi ddk ddl ddo ddr dds de- deb ded dee deh dei dek del deo der des dh- dhb dhd dhe dhh dhi dhk dhl dho dhr dhs di- dib did die dih dii dik dil dio dir dis dkb dke dki dkk dkl dko dkr dks dl- dlb dld dle dlh dli dlk dll dlo dlr dls dob dod doe doh doi dok dol doo dor dos drb drd dre dri drk drl dro drr drs dsb dsd dse dsh dsi dsk dsl dso dsr dss ebb ebd ebe ebh ebi ebk ebl ebo ebr ebs ed- edb edd ede edh edi edk edl edo edr eds eeb eed eee eek eel eeo eer ees ehb ehd ehe ehh ehi ehl eho ehr ehs eib eid eie eii eik eil eio eir eis ekb ekd eke ekh eki ekl eko ekr eks elb eld ele elh eli elk ell elo elr els eo- eob eod eoe eoh eoi eok eol eoo eor eos erb erd ere erh eri erk erl ero err ers es- esb esd ese esh esi esk esl eso esr ess h-i hbb hbd hbe hbh hbi hbk hbl hbo hbr hbs hdb hdd hde hdh hdi hdk hdl hdo hdr hds he- heb hed hee heh hei hek hel heo her hes hhb hhd hhe hhh hhi hhk hhl hho hhr hhs hib hid hie hih hii hik hil hio hir his hkb hkd hkh hki hkk hkl hko hkr hks hlb hld hle hlh hli hll hlo hlr hls hob hod hoe hoh hoi hok hol hoo hor hos hr- hrb hrd hre hrh hri hrk hrl hro hrr hrs hsb hsd hse hsh hsi hsk hsl hsr hss i-d ibb ibd ibe ibh ibi ibk ibl ibo ibr ibs idb idd ide idh idi idk idl ido idr ids ie- ied iee iei iek iel ier ies ihb ihd ihe ihh ihi ihk ihl iho ihr ihs iib iid iie iih iii iil iio iir iis ikb ike iki ikk ikl iko ikr iks il- ilb ild ile ilh ili ilk ill ilo ilr ils io- iob iod ioe ioh ioi iol ioo ior ios ir- irb ird ire iri irk irl iro irr irs is- isb isd ise ish isi isk isl iso isr iss kbb kbd kbe kbh kbi kbk kbl kbo kbr kbs kdb kde kdh kdk kdl kdo kdr kds ke- keb ked kee keh kei kek kel keo ker kes khe khh khi khk kho khr khs kib kid kie kih kii kik kil kio kir kis kkb kke kkh kki kkk kkl kkr kks kl- klb kld klh kli klo klr kls kob kod koe koh koi kok kol koo kor kos krd kri krk krl kro krr krs ksb ksd kse ksh ksi ksk ksl kso ksr kss lbb lbd lbe lbh lbi lbk lbl lbo lbr lbs ldb ldd lde ldh ldi ldk ldl ldo ldr lds leb led lee leh lei lek lel leo ler les lhb lhd lhh lhi lhk lho lhr lhs lib lid lie lih lii lik lil lio lir lis lkb lkh lkl lkr lks llb lld lle lli llk lll llo llr lls lob lod loe loh loi lok lol loo lor los lrb lrd lrh lri lrk lro lrr lrs lsb lsd lse lsh lsi lsk lsl lso lsr lss o-i ob- obb obd obe obh obi obk obl obo obr obs odb odd ode odh odi odl odo odr ods oeb oed oee oeh oei oel oeo oer oes ohd ohe ohh ohi ohl oho ohr ohs oib oid oie oii oik oil oio oir ois okb okd oke oki okk okl oko okr oks olb old ole oli olk oll olo ols oo- oob ood ooh ooi ook ool ooo oor oos or- orb ord ore orh ori ork orl oro orr ors os- osb osd ose osh osi osk osl oso osr oss rbb rbd rbe rbh rbi rbk rbl rbo rbr rbs rdb rdd rde rdh rdi rdl rdo rdr rds re- reb red ree reh rei rek rel reo rer res rh- rhb rhd rhe rhh rhi rhl rho rhr rhs rib rid rie rih rii rik ril rio rir ris rkb rke rkk rko rks rld rle rlh rli rll rlo rlr rls rob rod roe roh roi rok rol roo ror ros rrb rrd rrh rri rrk rrl rrr rrs rsb rsd rse rsh rsi rsk rsl rso rsr rss sbb sbd sbe sbh sbi sbk sbl sbo sbr sbs sdb sdd sde sdh sdi sdk sdl sdo sdr sds se- seb sed see seh sei sek sel seo ser ses sh- shb shd she shh shi shk shl sho shr shs sib sid sie sih sii sik sil sio sir sis sk- skb skd ske skh ski skk skl sko skr sks slb sld sle slh sli slk sll slo slr sls sob sod soe soh soi sok sol soo sor sos sr- srb srd sre srh sri srk srl sro srr srs ss- ssb ssd sse ssh ssi ssk ssl sso ssr sss