-er -ol -th bbb bbd bbe bbh bbl bbo bbr bbt bdb bdd bde bdh bdl bdo bdr bdt be- beb bed bee beh bel beo ber bet bhb bhd bhe bhh bhl bho bhr bht blb bld ble blh bll blo blr blt bob bod boe boh bol boo bor bot brb brd bre brh brl bro brr brt btb btd bte bth btl bto btr btt dbb dbd dbe dbh dbl dbo dbr dbt ddb ddd dde ddh ddl ddo ddr ddt de- deb ded dee deh del deo der det dh- dhb dhd dhe dhh dhl dho dhr dht dl- dlb dld dle dlh dll dlo dlr dlt dob dod doe doh dol doo dor dot drb drd dre drl dro drr drt dtb dtd dte dth dtl dto dtr dtt ebb ebd ebe ebh ebl ebo ebr ebt ed- edb edd ede edh edl edo edr edt eeb eed eee eel eeo eer eet ehb ehd ehe ehh ehl eho ehr eht elb eld ele elh ell elo elr elt eo- eob eod eoe eoh eol eoo eor eot erb erd ere erh erl ero err ert etb etd ete eth etl eto etr ett hbb hbd hbe hbh hbl hbo hbr hbt hdb hdd hde hdh hdl hdo hdr hdt he- heb hed hee heh hel heo her het hhb hhd hhe hhh hhl hho hhr hht hlb hld hle hlh hll hlo hlr hlt hob hod hoe hoh hol hoo hor hot hr- hrb hrd hre hrh hrl hro hrr hrt htb htd hte hth htl hto htr htt lbb lbd lbe lbh lbl lbo lbr lbt ldb ldd lde ldh ldl ldo ldr ldt leb led lee leh lel leo ler let lhb lhd lhh lho lhr lht llb lld lle lll llo llr llt lob lod loe loh lol loo lor lot lrb lrd lrh lro lrr lrt ltb ltd lte lth ltl lto ltr ltt ob- obb obd obe obh obl obo obr obt odb odd ode odh odl odo odr odt oeb oed oee oeh oel oeo oer oet ohd ohe ohh ohl oho ohr oht olb old ole oll olo olt oo- oob ood ooh ool ooo oor oot or- orb ord ore orh orl oro orr ort ot- otb otd ote oth otl oto otr ott rbb rbd rbe rbh rbl rbo rbr rbt rdb rdd rde rdh rdl rdo rdr rdt re- reb red ree reh rel reo rer ret rh- rhb rhd rhe rhh rhl rho rhr rht rld rle rlh rll rlo rlr rlt rob rod roe roh rol roo ror rot rrb rrd rrh rrl rrr rrt rtb rtd rte rtl rto rtr rtt tbb tbd tbe tbh tbl tbo tbr tbt tdb tdd tde tdh tdl tdo tdr tdt te- teb ted tee teh tel teo ter tet th- thb thd the thh thl tho thr tht tld tle tlh tll tlo tlr tlt to- tob tod toe toh tol too tor tot trb trd tre trh trl tro trr trt ttb ttd tte tth ttl tto ttr ttt