-er -ey -th bbb bbe bbh bbi bbr bbt bbx bby be- beb bee beh bei ber bet bex bey bhb bhe bhh bhi bhr bht bhx bi- bib bie bih bii bir bit bix biy brb bre brh bri brr brt brx bry btb bte bth bti btr btt btx bty bxb bxi bxx by- bye byh byi byr byt ebb ebe ebh ebi ebr ebt ebx eby eeb eee eer eet eex eey ehb ehe ehh ehi ehr eht eib eie eii eir eit eix erb ere erh eri err ert ery etb ete eth eti etr ett etx ety ex- exe exh exi exr ext exx exy eye eyr eyt h-i hbb hbe hbh hbi hbr hbt hbx hby he- heb hee heh hei her het hex hey hhb hhe hhh hhi hhr hht hhy hib hie hih hii hir hit hix hr- hrb hre hrh hri hrr hrt htb hte hth hti htr htt htx hty hy- hyb hye hyh hyi hyr hyt hyy ibb ibe ibh ibi ibr ibt ibx iby ie- iee iei ier iet iex iey ihb ihe ihh ihi ihr iht ihy iib iie iih iii iir iit iix ir- irb ire iri irr irt irx iry itb ite ith iti itt itx ity ixe ixi ixy iye iyr iyt iyy rbb rbe rbh rbi rbr rbt rbx re- reb ree reh rei rer ret rex rey rh- rhb rhe rhh rhi rhr rht rib rie rih rii rir rit rix riy rrb rrh rri rrr rrt rtb rte rti rtr rtt rtx rty rxr ry- rye ryr ryy t-x tbb tbe tbh tbi tbr tbt te- teb tee teh tei ter tet tex tey th- thb the thh thi thr tht thx thy tib tie tih tii tir tit tix tiy trb tre trh tri trr trt trx try ttb tte tth tti ttr ttt ttx tty txe txi txt tye tyr tyt xbe xbr xbx xee xer xet xex xht xie xii xit xix xrt xrx xry xti xtr xtx xty xxi xxx xxy xyr xyy ybe ybi ybr yby yeb yee yeh yei yer yet yex yey yhe yhi yht yie yih yii yir yit yre yrt yte yth ytr ytt yxe yxy yyb yye yyt yyy