-er -ol bbb bbe bbg bbh bbk bbl bbo bbr be- beb bee beg beh bek bel beo ber bgb bge bgg bgh bgk bgl bgo bgr bhb bhe bhg bhh bhk bhl bho bhr bkb bke bkg bkk bkl bko bkr blb ble blg blh blk bll blo blr bob boe bog boh bok bol boo bor brb bre brg brh brk brl bro brr ebb ebe ebg ebh ebk ebl ebo ebr eeb eee eeg eek eel eeo eer egb ege egg egh egl ego egr ehb ehe ehg ehh ehl eho ehr ekb eke ekg ekh ekl eko ekr elb ele elg elh elk ell elo elr eo- eob eoe eog eoh eok eol eoo eor erb ere erg erh erk erl ero err gbe gbg gbh gbk gbl gbo gbr ge- geb gee geg geh gek gel geo ger ggb ggg ggh ggo ggr ghb ghe ghg ghh ghl gho ghr gkb gkh gko glb gle glg glh glk gll glo glr gob goe gog goh gok gol goo gor grb gre grg grh grk grl gro grr hbb hbe hbg hbh hbk hbl hbo hbr he- heb hee heg heh hek hel heo her hgb hge hgg hgh hgk hgl hgo hgr hhb hhe hhg hhh hhk hhl hho hhr hkb hkg hkh hkk hkl hko hkr hlb hle hlg hlh hll hlo hlr hob hoe hog hoh hok hol hoo hor hr- hrb hre hrg hrh hrk hrl hro hrr kbb kbe kbh kbk kbl kbo kbr ke- keb kee keg keh kek kel keo ker kgb kgh kgl kgo khe khh khk kho khr kkb kke kkh kkk kkl kkr kl- klb klg klh klo klr kob koe kog koh kok kol koo kor krg krk krl kro krr lbb lbe lbg lbh lbk lbl lbo lbr leb lee leg leh lek lel leo ler lgb lge lgg lgh lgk lgl lgo lgr lhb lhh lhk lho lhr lkb lkg lkh lkl lkr llb lle llg llk lll llo llr lob loe log loh lok lol loo lor lrb lrg lrh lrk lro lrr ob- obb obe obg obh obk obl obo obr oeb oee oeg oeh oel oeo oer oge ogg ogh ogl ogo ohe ohg ohh ohl oho ohr okb oke okg okk okl oko okr olb ole olg olk oll olo oo- oob oog ooh ook ool ooo oor or- orb ore org orh ork orl oro orr rbb rbe rbg rbh rbk rbl rbo rbr re- reb ree reg reh rek rel reo rer rgb rge rgg rgh rgk rgo rgr rh- rhb rhe rhg rhh rhl rho rhr rkb rke rkg rkk rko rle rlg rlh rll rlo rlr rob roe rog roh rok rol roo ror rrb rrg rrh rrk rrl rrr