-er -ol b-p bbb bbd bbe bbl bbo bbp bbr bbt bdb bdd bde bdl bdo bdp bdr bdt be- beb bed bee bel beo bep ber bet blb bld ble bll blo blp blr blt bob bod boe bol boo bop bor bot bpb bpd bpe bpl bpo bpp bpr bpt brb brd bre brl bro brp brr brt btb btd bte btl bto btp btr btt dbb dbd dbe dbl dbo dbp dbr dbt ddb ddd dde ddl ddo ddp ddr ddt de- deb ded dee del deo dep der det dl- dlb dld dle dll dlo dlp dlr dlt dob dod doe dol doo dop dor dot dpb dpd dpe dpl dpo dpp dpr dpt drb drd dre drl dro drp drr drt dtb dtd dte dtl dto dtp dtr dtt ebb ebd ebe ebl ebo ebp ebr ebt ed- edb edd ede edl edo edp edr edt eeb eed eee eel eeo eep eer eet elb eld ele ell elo elp elr elt eo- eob eod eoe eol eoo eop eor eot ep- epb epd epe epl epo epp epr ept erb erd ere erl ero erp err ert etb etd ete etl eto etp etr ett l-p lbb lbd lbe lbl lbo lbp lbr lbt ldb ldd lde ldl ldo ldp ldr ldt leb led lee lel leo lep ler let llb lld lle lll llo llp llr llt lob lod loe lol loo lop lor lot lpb lpd lpe lpl lpo lpp lpr lpt lrb lrd lro lrp lrr lrt ltb ltd lte ltl lto ltp ltr ltt ob- obb obd obe obl obo obp obr obt odb odd ode odl odo odp odr odt oeb oed oee oel oeo oep oer oet olb old ole oll olo olp olt oo- oob ood ool ooo oop oor oot op- opb opd ope opl opo opp opr opt or- orb ord ore orl oro orp orr ort ot- otb otd ote otl oto otp otr ott p-p pbb pbd pbe pbl pbo pbp pbr pbt pdb pdd pde pdl pdo pdp pdr pdt peb ped pee pel peo pep per pet plb pld ple pll plo plp plr plt pob pod poe pol poo pop por pot ppb ppd ppe ppl ppo ppp ppr ppt prb prd pre prl pro prp prr prt pt- ptb ptd pte ptl pto ptp ptr ptt rbb rbd rbe rbl rbo rbp rbr rbt rdb rdd rde rdl rdo rdp rdr rdt re- reb red ree rel reo rep rer ret rld rle rll rlo rlp rlr rlt rob rod roe rol roo rop ror rot rpb rpd rpe rpl rpo rpp rpr rpt rrb rrd rrl rrp rrr rrt rtb rtd rte rtl rto rtp rtr rtt tbb tbd tbe tbl tbo tbp tbr tbt tdb tdd tde tdl tdo tdp tdr tdt te- teb ted tee tel teo tep ter tet tld tle tll tlo tlp tlr tlt to- tob tod toe tol too top tor tot tpb tpd tpe tpl tpo tpp tpr tpt trb trd tre trl tro trp trr trt ttb ttd tte ttl tto ttp ttr ttt