-er -ol bbb bbd bbe bbh bbk bbl bbo bbr bdb bdd bde bdh bdk bdl bdo bdr be- beb bed bee beh bek bel beo ber bhb bhd bhe bhh bhk bhl bho bhr bkb bke bkk bkl bko bkr blb bld ble blh blk bll blo blr bob bod boe boh bok bol boo bor brb brd bre brh brk brl bro brr dbb dbd dbe dbh dbk dbl dbo dbr ddb ddd dde ddh ddk ddl ddo ddr de- deb ded dee deh dek del deo der dh- dhb dhd dhe dhh dhk dhl dho dhr dkb dke dkk dkl dko dkr dl- dlb dld dle dlh dlk dll dlo dlr dob dod doe doh dok dol doo dor drb drd dre drk drl dro drr ebb ebd ebe ebh ebk ebl ebo ebr ed- edb edd ede edh edk edl edo edr eeb eed eee eek eel eeo eer ehb ehd ehe ehh ehl eho ehr ekb ekd eke ekh ekl eko ekr elb eld ele elh elk ell elo elr eo- eob eod eoe eoh eok eol eoo eor erb erd ere erh erk erl ero err hbb hbd hbe hbh hbk hbl hbo hbr hdb hdd hde hdh hdk hdl hdo hdr he- heb hed hee heh hek hel heo her hhb hhd hhe hhh hhk hhl hho hhr hkb hkd hkh hkk hkl hko hkr hlb hld hle hlh hll hlo hlr hob hod hoe hoh hok hol hoo hor hr- hrb hrd hre hrh hrk hrl hro hrr kbb kbd kbe kbh kbk kbl kbo kbr kdb kde kdh kdk kdl kdo kdr ke- keb ked kee keh kek kel keo ker khe khh khk kho khr kkb kke kkh kkk kkl kkr kl- klb kld klh klo klr kob kod koe koh kok kol koo kor krd krk krl kro krr lbb lbd lbe lbh lbk lbl lbo lbr ldb ldd lde ldh ldk ldl ldo ldr leb led lee leh lek lel leo ler lhb lhd lhh lhk lho lhr lkb lkh lkl lkr llb lld lle llk lll llo llr lob lod loe loh lok lol loo lor lrb lrd lrh lrk lro lrr ob- obb obd obe obh obk obl obo obr odb odd ode odh odl odo odr oeb oed oee oeh oel oeo oer ohd ohe ohh ohl oho ohr okb okd oke okk okl oko okr olb old ole olk oll olo oo- oob ood ooh ook ool ooo oor or- orb ord ore orh ork orl oro orr rbb rbd rbe rbh rbk rbl rbo rbr rdb rdd rde rdh rdl rdo rdr re- reb red ree reh rek rel reo rer rh- rhb rhd rhe rhh rhl rho rhr rkb rke rkk rko rld rle rlh rll rlo rlr rob rod roe roh rok rol roo ror rrb rrd rrh rrk rrl rrr