-er -ic -ol bbb bbc bbd bbe bbg bbi bbk bbl bbo bbr bbs bcb bcc bcd bce bcg bci bck bcl bco bcr bcs bdb bdc bdd bde bdg bdi bdk bdl bdo bdr bds be- beb bec bed bee beg bei bek bel beo ber bes bgb bgc bgd bge bgg bgi bgk bgl bgo bgr bgs bi- bib bic bid bie big bii bik bil bio bir bis bkb bkc bke bkg bkk bkl bko bkr bks blb blc bld ble blg bli blk bll blo blr bls bob boc bod boe bog boi bok bol boo bor bos brb brd bre brg bri brk brl bro brr brs bsb bsc bsd bse bsg bsi bsk bsl bso bsr bss c-- cbb cbc cbd cbe cbg cbi cbk cbl cbo cbr cbs ccb ccc ccd cce ccg cci cck ccl cco ccr ccs cdb cdc cdd cde cdg cdi cdk cdl cdo cdr cds ce- ceb cec ced cee ceg cei cek cel ceo cer ces cgb cgc cgd cge cgg cgi cgl cgo cgr cgs ci- cib cic cid cie cig cii cik cil cio cir cis ckb ckc ckd cki cko cks cl- clb clc cld cle clg cli clk cll clo clr cls co- cob coc cod coe cog coi cok col coo cor cos crb crc crd cre crg cri crk crl cro crr crs csb csc csd cse csg csi csk csl cso csr css dbb dbc dbd dbe dbg dbi dbk dbl dbo dbr dbs dcb dcc dcd dce dcg dci dck dcl dco dcr dcs ddb ddc ddd dde ddg ddi ddk ddl ddo ddr dds de- deb dec ded dee deg dei dek del deo der des dgc dgd dge dgg dgi dgk dgl dgr dgs di- dib dic did die dig dii dik dil dio dir dis dkb dkc dke dkg dki dkk dkl dko dkr dks dl- dlb dlc dld dle dlg dli dlk dll dlo dlr dls dob doc dod doe dog doi dok dol doo dor dos drb drc drd dre drg dri drk drl dro drr drs dsb dsc dsd dse dsg dsi dsk dsl dso dsr dss ebb ebc ebd ebe ebg ebi ebk ebl ebo ebr ebs ec- ecb ecc ecd ece ecg eci eck ecl eco ecr ecs ed- edb edc edd ede edg edi edk edl edo edr eds eeb eec eed eee eeg eek eel eeo eer ees egb egc egd ege egg egi egl ego egr egs eib eic eid eie eig eii eik eil eio eir eis ekb ekc ekd eke ekg eki ekl eko ekr eks elb elc eld ele elg eli elk ell elo elr els eo- eob eoc eod eoe eog eoi eok eol eoo eor eos erb erc erd ere erg eri erk erl ero err ers es- esb esc esd ese esg esi esk esl eso esr ess g-d gbc gbd gbe gbg gbi gbk gbl gbo gbr gbs gcb gcc gcd gce gcg gci gck gcl gco gcr gcs gdb gdc gdd gde gdi gdk gdl gdo gdr gds ge- geb gec ged gee geg gei gek gel geo ger ges ggb ggc ggd ggg ggi ggo ggr ggs gib gic gid gie gig gii gik gil gio gir gis gkb gkd gko gks glb glc gld gle glg gli glk gll glo glr gls gob goc god goe gog goi gok gol goo gor gos grb grc grd gre grg gri grk grl gro grr grs gsb gsc gsd gse gsg gsi gsk gsl gso gsr gss i-d ibb ibc ibd ibe ibg ibi ibk ibl ibo ibr ibs icb icc icd ice icg ici ick icl ico icr ics idb idc idd ide idg idi idk idl ido idr ids ie- iec ied iee ieg iei iek iel ier ies igb igc igd ige igg igi igk igl igo igr igs iib iic iid iie iii iil iio iir iis ikb ikc ike iki ikk ikl iko ikr iks il- ilb ilc ild ile ilg ili ilk ill ilo ilr ils io- iob ioc iod ioe iog ioi iol ioo ior ios ir- irb irc ird ire irg iri irk irl iro irr irs is- isb isc isd ise isg isi isk isl iso isr iss kbb kbc kbd kbe kbi kbk kbl kbo kbr kbs kcb kcc kcd kce kcg kci kck kcl kcr kcs kdb kdc kde kdg kdk kdl kdo kdr kds ke- keb kec ked kee keg kei kek kel keo ker kes kgb kgc kgd kgi kgl kgo kgs kib kic kid kie kig kii kik kil kio kir kis kkb kkc kke kki kkk kkl kkr kks kl- klb klc kld klg kli klo klr kls kob koc kod koe kog koi kok kol koo kor kos krc krd krg kri krk krl kro krr krs ksb ksc ksd kse ksg ksi ksk ksl kso ksr kss lbb lbc lbd lbe lbg lbi lbk lbl lbo lbr lbs lcb lcc lcd lce lcg lci lck lcl lco lcr lcs ldb ldc ldd lde ldg ldi ldk ldl ldo ldr lds leb lec led lee leg lei lek lel leo ler les lgb lgc lgd lge lgg lgi lgk lgl lgo lgr lgs lib lic lid lie lig lii lik lil lio lir lis lkb lkg lkl lkr lks llb llc lld lle llg lli llk lll llo llr lls lob loc lod loe log loi lok lol loo lor los lrb lrc lrd lrg lri lrk lro lrr lrs lsb lsc lsd lse lsg lsi lsk lsl lso lsr lss o-i ob- obb obc obd obe obg obi obk obl obo obr obs oc- ocb occ ocd ocg oci ock ocl oco ocr ocs odb odc odd ode odg odi odl odo odr ods oeb oec oed oee oeg oei oel oeo oer oes ogc ogd oge ogg ogi ogl ogo ogs oib oic oid oie oii oik oil oio oir ois okb