-er bbb bbd bbe bbo bbr bdb bdd bde bdj bdo bdr be- beb bed bee beo ber bjd bjj bjr bob bod boe boj boo bor brb brd bre brj bro brr dbb dbd dbe dbo dbr ddb ddd dde ddo ddr de- deb ded dee dej deo der dj- djb djd dje djo dob dod doe doj doo dor drb drd dre drj dro drr ebb ebd ebe ebj ebo ebr ed- edb edd ede edj edo edr eeb eed eee eeo eer ejd ejo eo- eob eod eoe eoo eor erb erd ere ero err j-d jbj jbo jbr jdb jde jdo jdr jeb jed jee jej jeo jer jjb jjj jjr job jod joe joj joo jor jrb jro jrr ob- obb obd obe obj obo obr odb odd ode odo odr oeb oed oee oeo oer ojb ojd oje ojo oo- oob ood ooo oor or- orb ord ore oro orr rbb rbd rbe rbo rbr rdb rdd rde rdj rdo rdr re- reb red ree reo rer rjr rob rod roe roj roo ror rrb rrd rrr