-er -ey bbb bbd bbe bbh bbi bbo bbr bby bdb bdd bde bdh bdi bdo bdr bdy be- beb bed bee beh bei beo ber bey bhb bhd bhe bhh bhi bho bhr bi- bib bid bie bih bii bio bir biy bob bod boe boh boi boo bor boy brb brd bre brh bri bro brr bry by- byd bye byh byi byo byr dbb dbd dbe dbh dbi dbo dbr dby ddb ddd dde ddh ddi ddo ddr ddy de- deb ded dee deh dei deo der dey dh- dhb dhd dhe dhh dhi dho dhr di- dib did die dih dii dio dir diy dob dod doe doh doi doo dor doy drb drd dre dri dro drr dry dy- dyb dyd dye dyo dyr dyy ebb ebd ebe ebh ebi ebo ebr eby ed- edb edd ede edh edi edo edr edy eeb eed eee eeo eer eey ehb ehd ehe ehh ehi eho ehr eib eid eie eii eio eir eo- eob eod eoe eoh eoi eoo eor erb erd ere erh eri ero err ery eyd eye eyo eyr h-i hbb hbd hbe hbh hbi hbo hbr hby hdb hdd hde hdh hdi hdo hdr hdy he- heb hed hee heh hei heo her hey hhb hhd hhe hhh hhi hho hhr hhy hib hid hie hih hii hio hir hob hod hoe hoh hoi hoo hor hoy hr- hrb hrd hre hrh hri hro hrr hy- hyb hyd hye hyh hyi hyo hyr hyy i-d ibb ibd ibe ibh ibi ibo ibr iby idb idd ide idh idi ido idr idy ie- ied iee iei ier iey ihb ihd ihe ihh ihi iho ihr ihy iib iid iie iih iii iio iir io- iob iod ioe ioh ioi ioo ior ir- irb ird ire iri iro irr iry iye iyo iyr iyy o-i ob- obb obd obe obh obi obo obr oby odb odd ode odh odi odo odr oeb oed oee oeh oei oeo oer oey ohd ohe ohh ohi oho ohr oib oid oie oii oio oir oo- oob ood ooh ooi ooo oor or- orb ord ore orh ori oro orr ory oyd oye oyi oyo rbb rbd rbe rbh rbi rbo rbr rdb rdd rde rdh rdi rdo rdr rdy re- reb red ree reh rei reo rer rey rh- rhb rhd rhe rhh rhi rho rhr rib rid rie rih rii rio rir riy rob rod roe roh roi roo ror roy rrb rrd rrh rri rrr ry- ryd rye ryo ryr ryy ybe ybi ybr yby yde ydo ydy yeb yed yee yeh yei yeo yer yey yhe yhi yid yie yih yii yio yir yob yod yoe yoi yoo yor yoy yre yro yyb yye yyy