-er -ey -th bbb bbc bbe bbg bbh bbo bbr bbt bby bcb bcc bce bcg bch bco bcr bct bcy be- beb bec bee beg beh beo ber bet bey bgb bgc bge bgg bgh bgo bgr bgt bhb bhc bhe bhg bhh bho bhr bht bob boc boe bog boh boo bor bot boy brb bre brg brh bro brr brt bry btb btc bte btg bth bto btr btt bty by- byc bye byg byh byo byr byt c-- cbb cbc cbe cbg cbh cbo cbr cbt cby ccb ccc cce ccg cch cco ccr cct ce- ceb cec cee ceg ceh ceo cer cet cey cgb cgc cge cgg cgh cgo cgr cgt cgy ch- chb chc che chg chh cho chr cht chy co- cob coc coe cog coh coo cor cot coy crb crc cre crg crh cro crr crt cry ctb ctc cte ctg cth cto ctr ctt cty cyb cyc cye cyg cyo cyr cyt ebb ebc ebe ebg ebh ebo ebr ebt eby ec- ecb ecc ece ecg ech eco ecr ect eeb eec eee eeg eeo eer eet eey egb egc ege egg egh ego egr egt egy ehb ehc ehe ehg ehh eho ehr eht eo- eob eoc eoe eog eoh eoo eor eot erb erc ere erg erh ero err ert ery etb etc ete etg eth eto etr ett ety eyc eye eyo eyr eyt gbc gbe gbg gbh gbo gbr gbt gby gcb gcc gce gcg gch gco gcr gct ge- geb gec gee geg geh geo ger get gey ggb ggc ggg ggh ggo ggr ggt ghb ghc ghe ghg ghh gho ghr ght gob goc goe gog goh goo gor got goy grb grc gre grg grh gro grr grt gry gtb gtc gte gtg gth gto gtr gtt gty gy- gyb gye gyo gyr hbb hbc hbe hbg hbh hbo hbr hbt hby hcb hcc hce hcg hch hco hcr hct hcy he- heb hec hee heg heh heo her het hey hgb hgc hge hgg hgh hgo hgr hgt hgy hhb hhc hhe hhg hhh hho hhr hht hhy hob hoc hoe hog hoh hoo hor hot hoy hr- hrb hrc hre hrg hrh hro hrr hrt htb htc hte htg hth hto htr htt hty hy- hyb hyc hye hyg hyh hyo hyr hyt hyy ob- obb obc obe obg obh obo obr obt oby oc- ocb occ ocg och oco ocr oct oeb oec oee oeg oeh oeo oer oet oey ogc oge ogg ogh ogo ogt ogy ohc ohe ohg ohh oho ohr oht oo- oob ooc oog ooh ooo oor oot or- orb orc ore org orh oro orr ort ory ot- otb otc ote otg oth oto otr ott oye oyo rbb rbc rbe rbg rbh rbo rbr rbt rcb rcc rce rcg rch rco rcr rct re- reb rec ree reg reh reo rer ret rey rgb rgc rge rgg rgh rgo rgr rgt rh- rhb rhc rhe rhg rhh rho rhr rht rob roc roe rog roh roo ror rot roy rrb rrc rrg rrh rrr rrt rtb rtc rte rtg rto rtr rtt rty ry- ryc rye ryg ryo ryr ryy tbb tbc tbe tbg tbh tbo tbr tbt tcb tcc tce tcg tch tco tcr tct te- teb tec tee teg teh teo ter tet tey tgb tgc tge tgg tgh tgo tgr tgt tgy th- thb thc the thg thh tho thr tht thy to- tob toc toe tog toh too tor tot toy trb trc tre trg trh tro trr trt try ttb ttc tte ttg tth tto ttr ttt tty tyc tye tyg tyo tyr tyt ybc ybe ybg ybr yby ycc yce ych yco ycy yeb yec yee yeg yeh yeo yer yet yey ygc ygo yhc yhe yht yob yoc yoe yog yoo yor yot yoy yrc yre yrg yro yrt ytc yte yth yto ytr ytt yyb yyc yye yyg yyt yyy