-er -ey b-p bbb bbd bbe bbf bbi bbo bbp bbr bbs bby bdb bdd bde bdf bdi bdo bdp bdr bds bdy be- beb bed bee bef bei beo bep ber bes bey bfb bfd bfe bff bfi bfo bfp bfr bfs bfy bi- bib bid bie bif bii bio bip bir bis biy bob bod boe bof boi boo bop bor bos boy bpb bpd bpe bpf bpi bpo bpp bpr bps bpy brb brd bre brf bri bro brp brr brs bry bsb bsd bse bsf bsi bso bsp bsr bss bsy by- byd bye byf byi byo byp byr bys dbb dbd dbe dbf dbi dbo dbp dbr dbs dby ddb ddd dde ddf ddi ddo ddp ddr dds ddy de- deb ded dee def dei deo dep der des dey dfb dfd dfe dff dfi dfo dfp dfr dfs di- dib did die dif dii dio dip dir dis diy dob dod doe dof doi doo dop dor dos doy dpb dpd dpe dpf dpi dpo dpp dpr dps drb drd dre dri dro drp drr drs dry dsb dsd dse dsf dsi dso dsp dsr dss dsy dy- dyb dyd dye dyo dyp dyr dys dyy ebb ebd ebe ebf ebi ebo ebp ebr ebs eby ed- edb edd ede edf edi edo edp edr eds edy eeb eed eee eef eeo eep eer ees eey ef- efb efd efe eff efi efo efp efr efs eib eid eie eif eii eio eip eir eis eo- eob eod eoe eof eoi eoo eop eor eos ep- epb epd epe epf epi epo epp epr eps erb erd ere erf eri ero erp err ers ery es- esb esd ese esf esi eso esp esr ess esy eyd eye eyo eyp eyr eys fbb fbd fbe fbf fbi fbo fbp fbr fbs fdb fdd fde fdf fdi fdo fdp fdr fds feb fed fee fef fei feo fep fer fes fey ffd ffe fff ffi ffo ffp ffr ffs ffy fib fid fie fif fii fip fir fis fob foe fof foi foo fop for fos foy fpb fpd fpe fpi fpo fpp fpr fps fpy frb frd fre frf fri fro frp frr frs fry fsb fsd fse fsf fsi fso fsp fsr fss fy- fyb fye fyi fyo fyp i-d i-f ibb ibd ibe ibf ibi ibo ibp ibr ibs iby idb idd ide idf idi ido idp idr ids idy ie- ied iee ief iei iep ier ies iey ifb ifd ife iff ifi ifo ifp ifr ifs ify iib iid iie iif iii iio iip iir iis io- iob iod ioe iof ioi ioo iop ior ios ipb ipd ipe ipf ipi ipo ipp ipr ips ipy ir- irb ird ire irf iri iro irp irr irs iry is- isb isd ise isf isi iso isp isr iss isy iye iyo iyr iys iyy o-i ob- obb obd obe obf obi obo obp obr obs oby odb odd ode odf odi odo odp odr ods oeb oed oee oef oei oeo oep oer oes oey of- ofb ofd ofe off ofi ofo ofp ofr ofs oib oid oie oif oii oio oip oir ois oo- oob ood oof ooi ooo oop oor oos op- opb opd ope opf opi opo opp opr ops opy or- orb ord ore orf ori oro orp orr ors ory os- osb osd ose osf osi oso osp osr oss oyd oye oyi oyo oys p-p pbb pbd pbe pbf pbi pbo pbp pbr pbs pby pdb pdd pde pdf pdi pdo pdp pdr pds peb ped pee pef pei peo pep per pes pey pfb pfd pfe pff pfi pfo pfp pfr pfs pfy pib pid pie pif pii pio pip pir pis pob pod poe pof poi poo pop por pos poy ppb ppd ppe ppf ppi ppo ppp ppr pps prb prd pre prf pri pro prp prr prs pry ps- psb psd pse psf psi pso psp psr pss psy py- pyb pyd pye pyf pyo pyr pys rbb rbd rbe rbf rbi rbo rbp rbr rbs rdb rdd rde rdf rdi rdo rdp rdr rds rdy re- reb red ree ref rei reo rep rer res rey rfb rfd rfe rff rfi rfo rfp rfr rfs rib rid rie rif rii rio rip rir ris riy rob rod roe rof roi roo rop ror ros roy rpb rpd rpe rpf rpi rpo rpp rpr rps rrb rrd rrf rri rrp rrr rrs rsb rsd rse rsf rsi rso rsp rsr rss ry- ryd rye ryf ryo ryr rys ryy sbb sbd sbe sbf sbi sbo sbp sbr sbs sby sdb sdd sde sdf sdi sdo sdp sdr sds sdy se- seb sed see sef sei seo sep ser ses sey sfb sfd sfe sff sfi sfo sfp sfr sfs sib sid sie sif sii sio sip sir sis sob sod soe sof soi soo sop sor sos soy spb spd spe spf spi spo spp spr sps spy sr- srb srd sre srf sri sro srp srr srs sry ss- ssb ssd sse ssf ssi sso ssp ssr sss sy- syb syd sye syi syp syr sys ybe ybf ybi ybp ybr ybs yby yde ydo yds ydy yeb yed yee yef yei yeo yep yer yes yey yfd yfe yff yfr yfs yid yie yif yii yio yip yir yis yob yod yoe yof yoi yoo yop yor yos yoy ypd ypf ypo yps yre yrf yro yrp yrs ysb yse ysi yso ysp ysr yss ysy yyb yye yyf yys yyy