-er b-p bbb bbd bbe bbh bbo bbp bbr bdb bdd bde bdh bdo bdp bdr be- beb bed bee beh beo bep ber bhb bhd bhe bhh bho bhp bhr bob bod boe boh boo bop bor bpb bpd bpe bph bpo bpp bpr brb brd bre brh bro brp brr dbb dbd dbe dbh dbo dbp dbr ddb ddd dde ddh ddo ddp ddr de- deb ded dee deh deo dep der dh- dhb dhd dhe dhh dho dhp dhr dob dod doe doh doo dop dor dpb dpd dpe dph dpo dpp dpr drb drd dre dro drp drr ebb ebd ebe ebh ebo ebp ebr ed- edb edd ede edh edo edp edr eeb eed eee eeo eep eer ehb ehd ehe ehh eho ehp ehr eo- eob eod eoe eoh eoo eop eor ep- epb epd epe eph epo epp epr erb erd ere erh ero erp err hbb hbd hbe hbh hbo hbp hbr hdb hdd hde hdh hdo hdp hdr he- heb hed hee heh heo hep her hhb hhd hhe hhh hho hhp hhr hob hod hoe hoh hoo hop hor hpb hpd hpe hph hpo hpp hpr hr- hrb hrd hre hrh hro hrp hrr ob- obb obd obe obh obo obp obr odb odd ode odh odo odp odr oeb oed oee oeh oeo oep oer ohd ohe ohh oho ohp ohr oo- oob ood ooh ooo oop oor op- opb opd ope oph opo opp opr or- orb ord ore orh oro orp orr p-p pbb pbd pbe pbo pbp pbr pdb pdd pde pdh pdo pdp pdr peb ped pee peh peo pep per phb phd phe pho php phr pob pod poe poh poo pop por ppb ppd ppe pph ppo ppp ppr prb prd pre prh pro prp prr rbb rbd rbe rbh rbo rbp rbr rdb rdd rde rdh rdo rdp rdr re- reb red ree reh reo rep rer rh- rhb rhd rhe rhh rho rhp rhr rob rod roe roh roo rop ror rpb rpd rpe rph rpo rpp rpr rrb rrd rrh rrp rrr