-er -ol b-p bbb bbe bbg bbi bbl bbo bbp bbr bbs be- beb bee beg bei bel beo bep ber bes bgb bge bgg bgi bgl bgo bgp bgr bgs bi- bib bie big bii bil bio bip bir bis blb ble blg bli bll blo blp blr bls bob boe bog boi bol boo bop bor bos bpb bpe bpg bpi bpl bpo bpp bpr bps brb bre brg bri brl bro brp brr brs bsb bse bsg bsi bsl bso bsp bsr bss ebb ebe ebg ebi ebl ebo ebp ebr ebs eeb eee eeg eel eeo eep eer ees egb ege egg egi egl ego egp egr egs eib eie eig eii eil eio eip eir eis elb ele elg eli ell elo elp elr els eo- eob eoe eog eoi eol eoo eop eor eos ep- epb epe epg epi epl epo epp epr eps erb ere erg eri erl ero erp err ers es- esb ese esg esi esl eso esp esr ess g-p gbe gbg gbi gbl gbo gbp gbr gbs ge- geb gee geg gei gel geo gep ger ges ggb ggg ggi ggo ggp ggr ggs gib gie gig gii gil gio gip gir gis glb gle glg gli gll glo glp glr gls gob goe gog goi gol goo gop gor gos gpb gpe gpg gpi gpl gpo gpp gpr gps grb gre grg gri grl gro grp grr grs gsb gse gsg gsi gsl gso gsp gsr gss ibb ibe ibg ibi ibl ibo ibp ibr ibs ie- iee ieg iei iel iep ier ies igb ige igg igi igl igo igp igr igs iib iie iii iil iio iip iir iis il- ilb ile ilg ili ill ilo ilp ilr ils io- iob ioe iog ioi iol ioo iop ior ios ipb ipe ipg ipi ipl ipo ipp ipr ips ir- irb ire irg iri irl iro irp irr irs is- isb ise isg isi isl iso isp isr iss l-p lbb lbe lbg lbi lbl lbo lbp lbr lbs leb lee leg lei lel leo lep ler les lgb lge lgg lgi lgl lgo lgp lgr lgs lib lie lig lii lil lio lip lir lis llb lle llg lli lll llo llp llr lls lob loe log loi lol loo lop lor los lpb lpe lpg lpi lpl lpo lpp lpr lps lrb lrg lri lro lrp lrr lrs lsb lse lsg lsi lsl lso lsp lsr lss o-i ob- obb obe obg obi obl obo obp obr obs oeb oee oeg oei oel oeo oep oer oes oge ogg ogi ogl ogo ogp ogs oib oie oii oil oio oip oir ois olb ole olg oli oll olo olp ols oo- oob oog ooi ool ooo oop oor oos op- opb ope opg opi opl opo opp opr ops or- orb ore org ori orl oro orp orr ors os- osb ose osg osi osl oso osp osr oss p-p pbb pbe pbg pbi pbl pbo pbp pbr pbs peb pee peg pei pel peo pep per pes pgb pge pgg pgi pgl pgo pgp pgr pgs pib pie pig pii pil pio pip pir pis plb ple plg pli pll plo plp plr pls pob poe pog poi pol poo pop por pos ppb ppe ppg ppi ppl ppo ppp ppr pps prb pre prg pri prl pro prp prr prs ps- psb pse psg psi psl pso psp psr pss rbb rbe rbg rbi rbl rbo rbp rbr rbs re- reb ree reg rei rel reo rep rer res rgb rge rgg rgi rgo rgp rgr rgs rib rie rig rii ril rio rip rir ris rle rlg rli rll rlo rlp rlr rls rob roe rog roi rol roo rop ror ros rpb rpe rpg rpi rpl rpo rpp rpr rps rrb rrg rri rrl rrp rrr rrs rsb rse rsg rsi rsl rso rsp rsr rss sbb sbe sbg sbi sbl sbo sbp sbr sbs se- seb see seg sei sel seo sep ser ses sgb sge sgg sgi sgl sgo sgp sgr sgs sib sie sig sii sil sio sip sir sis slb sle slg sli sll slo slp slr sls sob soe sog soi sol soo sop sor sos spb spe spg spi spl spo spp spr sps sr- srb sre srg sri srl sro srp srr srs ss- ssb sse ssg ssi ssl sso ssp ssr sss