-er -ic -ol bbb bbc bbe bbg bbi bbl bbo bbr bbs bbt bcb bcc bce bcg bci bcl bco bcr bcs bct be- beb bec bee beg bei bel beo ber bes bet bgb bgc bge bgg bgi bgl bgo bgr bgs bgt bi- bib bic bie big bii bil bio bir bis bit blb blc ble blg bli bll blo blr bls blt bob boc boe bog boi bol boo bor bos bot brb bre brg bri brl bro brr brs brt bsb bsc bse bsg bsi bsl bso bsr bss bst btb btc bte btg bti btl bto btr bts btt c-- cbb cbc cbe cbg cbi cbl cbo cbr cbs cbt ccb ccc cce ccg cci ccl cco ccr ccs cct ce- ceb cec cee ceg cei cel ceo cer ces cet cgb cgc cge cgg cgi cgl cgo cgr cgs cgt ci- cib cic cie cig cii cil cio cir cis cit cl- clb clc cle clg cli cll clo clr cls clt co- cob coc coe cog coi col coo cor cos cot crb crc cre crg cri crl cro crr crs crt csb csc cse csg csi csl cso csr css cst ctb ctc cte ctg cti ctl cto ctr cts ctt ebb ebc ebe ebg ebi ebl ebo ebr ebs ebt ec- ecb ecc ece ecg eci ecl eco ecr ecs ect eeb eec eee eeg eel eeo eer ees eet egb egc ege egg egi egl ego egr egs egt eib eic eie eig eii eil eio eir eis eit elb elc ele elg eli ell elo elr els elt eo- eob eoc eoe eog eoi eol eoo eor eos eot erb erc ere erg eri erl ero err ers ert es- esb esc ese esg esi esl eso esr ess est etb etc ete etg eti etl eto etr ets ett gbc gbe gbg gbi gbl gbo gbr gbs gbt gcb gcc gce gcg gci gcl gco gcr gcs gct ge- geb gec gee geg gei gel geo ger ges get ggb ggc ggg ggi ggo ggr ggs ggt gib gic gie gig gii gil gio gir gis git glb glc gle glg gli gll glo glr gls glt gob goc goe gog goi gol goo gor gos got grb grc gre grg gri grl gro grr grs grt gsb gsc gse gsg gsi gsl gso gsr gss gst gtb gtc gte gtg gti gtl gto gtr gts gtt ibb ibc ibe ibg ibi ibl ibo ibr ibs ibt icb icc ice icg ici icl ico icr ics ict ie- iec iee ieg iei iel ier ies iet igb igc ige igg igi igl igo igr igs igt iib iic iie iii iil iio iir iis iit il- ilb ilc ile ilg ili ill ilo ilr ils ilt io- iob ioc ioe iog ioi iol ioo ior ios iot ir- irb irc ire irg iri irl iro irr irs irt is- isb isc ise isg isi isl iso isr iss ist itb itc ite itg iti itl ito its itt lbb lbc lbe lbg lbi lbl lbo lbr lbs lbt lcb lcc lce lcg lci lcl lco lcr lcs lct leb lec lee leg lei lel leo ler les let lgb lgc lge lgg lgi lgl lgo lgr lgs lgt lib lic lie lig lii lil lio lir lis lit llb llc lle llg lli lll llo llr lls llt lob loc loe log loi lol loo lor los lot lrb lrc lrg lri lro lrr lrs lrt lsb lsc lse lsg lsi lsl lso lsr lss lst ltb ltc lte ltg lti ltl lto ltr lts ltt o-i ob- obb obc obe obg obi obl obo obr obs obt oc- ocb occ ocg oci ocl oco ocr ocs oct oeb oec oee oeg oei oel oeo oer oes oet ogc oge ogg ogi ogl ogo ogs ogt oib oic oie oii oil oio oir ois oit olb olc ole olg oli oll olo ols olt oo- oob ooc oog ooi ool ooo oor oos oot or- orb orc ore org ori orl oro orr ors ort os- osb osc ose osg osi osl oso osr oss ost ot- otb otc ote otg oti otl oto otr ots ott rbb rbc rbe rbg rbi rbl rbo rbr rbs rbt rcb rcc rce rcg rci rcl rco rcr rcs rct re- reb rec ree reg rei rel reo rer res ret rgb rgc rge rgg rgi rgo rgr rgs rgt rib ric rie rig rii ril rio rir ris rit rlc rle rlg rli rll rlo rlr rls rlt rob roc roe rog roi rol roo ror ros rot rrb rrc rrg rri rrl rrr rrs rrt rsb rsc rse rsg rsi rsl rso rsr rss rst rtb rtc rte rtg rti rtl rto rtr rts rtt sbb sbc sbe sbg sbi sbl sbo sbr sbs sbt scb scc sce scg sci scl sco scr scs sct se- seb sec see seg sei sel seo ser ses set sgb sgc sge sgg sgi sgl sgo sgr sgs sgt sib sic sie sig sii sil sio sir sis sit slb slc sle slg sli sll slo slr sls slt sob soc soe sog soi sol soo sor sos sot sr- srb src sre srg sri srl sro srr srs srt ss- ssb ssc sse ssg ssi ssl sso ssr sss sst stb stc ste stg sti stl sto str sts stt tbb tbc tbe tbg tbi tbl tbo tbr tbs tbt tcb tcc tce tcg tci tcl tco tcr tcs tct te- teb tec tee teg tei tel teo ter tes tet tgb tgc tge tgg tgi tgl tgo tgr tgs tgt tib tic tie tig tii til tio tir tis tit tlc tle tlg tli tll tlo tlr tls tlt to- tob toc toe tog toi tol too tor tos tot trb trc tre trg tri trl tro trr trs trt tsb tsc tse tsg tsi tsl tso tsr tss tst