-er -ol b-p bbb bbe bbl bbn bbo bbp bbr bbt be- beb bee bel ben beo bep ber bet blb ble bll bln blo blp blr blt bnb bne bnl bnn bno bnp bnr bnt bob boe bol bon boo bop bor bot bpb bpe bpl bpn bpo bpp bpr bpt brb bre brl brn bro brp brr brt btb bte btl btn bto btp btr btt ebb ebe ebl ebn ebo ebp ebr ebt eeb eee eel een eeo eep eer eet elb ele ell eln elo elp elr elt en- enb ene enl enn eno enp enr ent eo- eob eoe eol eon eoo eop eor eot ep- epb epe epl epn epo epp epr ept erb ere erl ern ero erp err ert etb ete etl etn eto etp etr ett l-p lbb lbe lbl lbo lbp lbr lbt leb lee lel len leo lep ler let llb lle lll lln llo llp llr llt lnb lne lnl lnn lno lnp lnr lnt lob loe lol lon loo lop lor lot lpb lpe lpl lpn lpo lpp lpr lpt lrb lrn lro lrp lrr lrt ltb lte ltl lto ltp ltr ltt nbb nbe nbl nbn nbo nbp nbr nbt ne- neb nee nel nen neo nep ner net nlb nle nll nln nlo nlp nlr nlt nnb nne nnl nnn nno nnp nnt no- nob noe nol non noo nop nor not npb npe npl npn npo npp npr npt nrb nre nrl nrn nro nrp nrr nrt ntb nte ntn nto ntp ntr ntt ob- obb obe obl obn obo obp obr obt oeb oee oel oen oeo oep oer oet olb ole oll oln olo olp olt on- onb one onl onn ono onp onr ont oo- oob ool oon ooo oop oor oot op- opb ope opl opn opo opp opr opt or- orb ore orl orn oro orp orr ort ot- otb ote otl otn oto otp otr ott p-p pbb pbe pbl pbn pbo pbp pbr pbt peb pee pel pen peo pep per pet plb ple pll pln plo plp plr plt pn- pnb pne pnl pnn pno pnp pnr pnt pob poe pol pon poo pop por pot ppb ppe ppl ppn ppo ppp ppr ppt prb pre prl prn pro prp prr prt pt- ptb pte ptl ptn pto ptp ptr ptt rbb rbe rbl rbn rbo rbp rbr rbt re- reb ree rel ren reo rep rer ret rle rll rln rlo rlp rlr rlt rnb rnn rno rnp rnr rnt rob roe rol ron roo rop ror rot rpb rpe rpl rpn rpo rpp rpr rpt rrb rrl rrn rrp rrr rrt rtb rte rtl rtn rto rtp rtr rtt tbb tbe tbl tbn tbo tbp tbr tbt te- teb tee tel ten teo tep ter tet tle tll tln tlo tlp tlr tlt tnb tne tnl tnn tno tnp tnr tnt to- tob toe tol ton too top tor tot tpb tpe tpl tpn tpo tpp tpr tpt trb tre trl trn tro trp trr trt ttb tte ttl ttn tto ttp ttr ttt