-er -ol b-p bbb bbe bbi bbl bbn bbo bbp bbr bbt be- beb bee bei bel ben beo bep ber bet bi- bib bie bii bil bin bio bip bir bit blb ble bli bll bln blo blp blr blt bnb bne bni bnl bnn bno bnp bnr bnt bob boe boi bol bon boo bop bor bot bpb bpe bpi bpl bpn bpo bpp bpr bpt brb bre bri brl brn bro brp brr brt btb bte bti btl btn bto btp btr btt ebb ebe ebi ebl ebn ebo ebp ebr ebt eeb eee eel een eeo eep eer eet eib eie eii eil ein eio eip eir eit elb ele eli ell eln elo elp elr elt en- enb ene eni enl enn eno enp enr ent eo- eob eoe eoi eol eon eoo eop eor eot ep- epb epe epi epl epn epo epp epr ept erb ere eri erl ern ero erp err ert etb ete eti etl etn eto etp etr ett ibb ibe ibi ibl ibn ibo ibp ibr ibt ie- iee iei iel ien iep ier iet iib iie iii iil iin iio iip iir iit il- ilb ile ili ill iln ilo ilp ilr ilt in- inb ine ini inl inn ino inp inr int io- iob ioe ioi iol ion ioo iop ior iot ipb ipe ipi ipl ipn ipo ipp ipr ipt ir- irb ire iri irl irn iro irp irr irt itb ite iti itl itn ito itp itt l-p lbb lbe lbi lbl lbo lbp lbr lbt leb lee lei lel len leo lep ler let lib lie lii lil lin lio lip lir lit llb lle lli lll lln llo llp llr llt lnb lne lni lnl lnn lno lnp lnr lnt lob loe loi lol lon loo lop lor lot lpb lpe lpi lpl lpn lpo lpp lpr lpt lrb lri lrn lro lrp lrr lrt ltb lte lti ltl lto ltp ltr ltt n-i nbb nbe nbi nbl nbn nbo nbp nbr nbt ne- neb nee nei nel nen neo nep ner net nib nie nii nil nin nio nip nir nit nlb nle nli nll nln nlo nlp nlr nlt nnb nne nni nnl nnn nno nnp nnt no- nob noe noi nol non noo nop nor not npb npe npi npl npn npo npp npr npt nrb nre nri nrl nrn nro nrp nrr nrt ntb nte nti ntn nto ntp ntr ntt o-i ob- obb obe obi obl obn obo obp obr obt oeb oee oei oel oen oeo oep oer oet oib oie oii oil oin oio oip oir oit olb ole oli oll oln olo olp olt on- onb one oni onl onn ono onp onr ont oo- oob ooi ool oon ooo oop oor oot op- opb ope opi opl opn opo opp opr opt or- orb ore ori orl orn oro orp orr ort ot- otb ote oti otl otn oto otp otr ott p-p pbb pbe pbi pbl pbn pbo pbp pbr pbt peb pee pei pel pen peo pep per pet pib pie pii pil pin pio pip pir pit plb ple pli pll pln plo plp plr plt pn- pnb pne pni pnl pnn pno pnp pnr pnt pob poe poi pol pon poo pop por pot ppb ppe ppi ppl ppn ppo ppp ppr ppt prb pre pri prl prn pro prp prr prt pt- ptb pte pti ptl ptn pto ptp ptr ptt rbb rbe rbi rbl rbn rbo rbp rbr rbt re- reb ree rei rel ren reo rep rer ret rib rie rii ril rin rio rip rir rit rle rli rll rln rlo rlp rlr rlt rnb rni rnn rno rnp rnr rnt rob roe roi rol ron roo rop ror rot rpb rpe rpi rpl rpn rpo rpp rpr rpt rrb rri rrl rrn rrp rrr rrt rtb rte rti rtl rtn rto rtp rtr rtt tbb tbe tbi tbl tbn tbo tbp tbr tbt te- teb tee tei tel ten teo tep ter tet tib tie tii til tin tio tip tir tit tle tli tll tln tlo tlp tlr tlt tnb tne tni tnl tnn tno tnp tnr tnt to- tob toe toi tol ton too top tor tot tpb tpe tpi tpl tpn tpo tpp tpr tpt trb tre tri trl trn tro trp trr trt ttb tte tti ttl ttn tto ttp ttr ttt