-er -ol b-p bbb bbe bbi bbl bbn bbo bbp bbr bbs be- beb bee bei bel ben beo bep ber bes bi- bib bie bii bil bin bio bip bir bis blb ble bli bll bln blo blp blr bls bnb bne bni bnl bnn bno bnp bnr bns bob boe boi bol bon boo bop bor bos bpb bpe bpi bpl bpn bpo bpp bpr bps brb bre bri brl brn bro brp brr brs bsb bse bsi bsl bsn bso bsp bsr bss ebb ebe ebi ebl ebn ebo ebp ebr ebs eeb eee eel een eeo eep eer ees eib eie eii eil ein eio eip eir eis elb ele eli ell eln elo elp elr els en- enb ene eni enl enn eno enp enr ens eo- eob eoe eoi eol eon eoo eop eor eos ep- epb epe epi epl epn epo epp epr eps erb ere eri erl ern ero erp err ers es- esb ese esi esl esn eso esp esr ess ibb ibe ibi ibl ibn ibo ibp ibr ibs ie- iee iei iel ien iep ier ies iib iie iii iil iin iio iip iir iis il- ilb ile ili ill iln ilo ilp ilr ils in- inb ine ini inl inn ino inp inr ins io- iob ioe ioi iol ion ioo iop ior ios ipb ipe ipi ipl ipn ipo ipp ipr ips ir- irb ire iri irl irn iro irp irr irs is- isb ise isi isl isn iso isp isr iss l-p lbb lbe lbi lbl lbo lbp lbr lbs leb lee lei lel len leo lep ler les lib lie lii lil lin lio lip lir lis llb lle lli lll lln llo llp llr lls lnb lne lni lnl lnn lno lnp lnr lns lob loe loi lol lon loo lop lor los lpb lpe lpi lpl lpn lpo lpp lpr lps lrb lri lrn lro lrp lrr lrs lsb lse lsi lsl lsn lso lsp lsr lss n-i nbb nbe nbi nbl nbn nbo nbp nbr nbs ne- neb nee nei nel nen neo nep ner nes nib nie nii nil nin nio nip nir nis nlb nle nli nll nln nlo nlp nlr nls nnb nne nni nnl nnn nno nnp nns no- nob noe noi nol non noo nop nor nos npb npe npi npl npn npo npp npr nps nrb nre nri nrl nrn nro nrp nrr nrs nsb nse nsi nsl nsn nso nsp nsr nss o-i ob- obb obe obi obl obn obo obp obr obs oeb oee oei oel oen oeo oep oer oes oib oie oii oil oin oio oip oir ois olb ole oli oll oln olo olp ols on- onb one oni onl onn ono onp onr ons oo- oob ooi ool oon ooo oop oor oos op- opb ope opi opl opn opo opp opr ops or- orb ore ori orl orn oro orp orr ors os- osb ose osi osl osn oso osp osr oss p-p pbb pbe pbi pbl pbn pbo pbp pbr pbs peb pee pei pel pen peo pep per pes pib pie pii pil pin pio pip pir pis plb ple pli pll pln plo plp plr pls pn- pnb pne pni pnl pnn pno pnp pnr pns pob poe poi pol pon poo pop por pos ppb ppe ppi ppl ppn ppo ppp ppr pps prb pre pri prl prn pro prp prr prs ps- psb pse psi psl psn pso psp psr pss rbb rbe rbi rbl rbn rbo rbp rbr rbs re- reb ree rei rel ren reo rep rer res rib rie rii ril rin rio rip rir ris rle rli rll rln rlo rlp rlr rls rnb rni rnn rno rnp rnr rns rob roe roi rol ron roo rop ror ros rpb rpe rpi rpl rpn rpo rpp rpr rps rrb rri rrl rrn rrp rrr rrs rsb rse rsi rsl rsn rso rsp rsr rss sbb sbe sbi sbl sbn sbo sbp sbr sbs se- seb see sei sel sen seo sep ser ses sib sie sii sil sin sio sip sir sis slb sle sli sll sln slo slp slr sls snb sne sni snl snn sno snp snr sns sob soe soi sol son soo sop sor sos spb spe spi spl spn spo spp spr sps sr- srb sre sri srl srn sro srp srr srs ss- ssb sse ssi ssl ssn sso ssp ssr sss