-er b-u bbb bbe bbg bbi bbl bbm bbr bbt bbu be- beb bee beg bei bel bem ber bet beu bgb bge bgg bgi bgl bgm bgr bgt bgu bi- bib bie big bii bil bim bir bit biu blb ble blg bli bll blm blr blt blu bmb bme bmg bmi bml bmm bmr bmt bmu brb bre brg bri brl brm brr brt bru btb bte btg bti btl btm btr btt btu bub bue bug bui bul bum bur but buu ebb ebe ebg ebi ebl ebm ebr ebt ebu eeb eee eeg eel eem eer eet egb ege egg egi egl egm egr egt egu eib eie eig eii eil eim eir eit eiu elb ele elg eli ell elm elr elt elu em- emb eme emg emi eml emm emr emt emu erb ere erg eri erl erm err ert eru etb ete etg eti etl etm etr ett etu eu- eub eue eug eui eul eur eut gbe gbg gbi gbl gbm gbr gbt gbu ge- geb gee geg gei gel gem ger get geu ggb ggg ggi ggm ggr ggt ggu gib gie gig gii gil gim gir git giu glb gle glg gli gll glm glr glt glu gmb gme gmg gmi gml gmm gmr gmt grb gre grg gri grl grm grr grt gru gtb gte gtg gti gtl gtm gtr gtt gtu gu- gub gue gug gui gul gum gur gut guu ibb ibe ibg ibi ibl ibm ibr ibt ibu ie- iee ieg iei iel iem ier iet igb ige igg igi igl igm igr igt igu iib iie iii iil iim iir iit iiu il- ilb ile ilg ili ill ilm ilr ilt ilu im- imb ime img imi iml imm imt imu ir- irb ire irg iri irl irm irr irt iru itb ite itg iti itl itm itt itu iu- iub iue iug iui ium iur iut lbb lbe lbg lbi lbl lbm lbr lbt lbu leb lee leg lei lel lem ler let leu lgb lge lgg lgi lgl lgm lgr lgt lgu lib lie lig lii lil lim lir lit liu llb lle llg lli lll llm llr llt llu lmb lme lmg lmi lml lmm lmr lmt lmu lrb lrg lri lrm lrr lrt lru ltb lte ltg lti ltl ltm ltr ltt ltu lub lue lug lui lul lum lur lut luu m-r mbb mbe mbg mbi mbl mbm mbr mbt mbu meb mee meg mei mel mem mer met meu mgb mge mgi mgl mgm mgr mgt mgu mi- mib mie mig mii mil mim mir mit miu mlb mle mlg mli mll mlm mlr mlt mlu mmb mme mmg mmi mml mmm mmr mmt mmu mrb mre mrg mri mrl mrm mrr mrt mru mtb mte mtg mti mtl mtm mtr mtt mtu mub mue mug mui mul mum mur mut muu rbb rbe rbg rbi rbl rbm rbr rbt rbu re- reb ree reg rei rel rem rer ret reu rgb rge rgg rgi rgr rgt rib rie rig rii ril rim rir rit rle rlg rli rll rlm rlr rlt rlu rmb rme rmg rmi rml rmm rmr rmt rrb rrg rri rrl rrm rrr rrt rru rtb rte rtg rti rtl rtm rtr rtt rtu rub rue rug rui rum rur rut ruu tbb tbe tbg tbi tbl tbm tbr tbt tbu te- teb tee teg tei tel tem ter tet teu tgb tge tgg tgi tgl tgm tgr tgt tgu tib tie tig tii til tim tir tit tiu tle tlg tli tll tlm tlr tlt tlu tmb tme tmg tmi tml tmm tmr tmt tmu trb tre trg tri trl trm trr trt tru ttb tte ttg tti ttl ttm ttr ttt ttu tub tue tug tui tul tum tur tut tuu ubb ube ubg ubi ubl ubr ubt ubu ueb uee ueg uei uel uem uer uet ugb uge ugg ugi ugl ugm ugr ugt ugu uib uie uig uii uil uim uir uit uiu ulb ule ulg uli ull ulm ulr ult ulu um- umb ume umg umi uml umm umr umt umu ur- urb ure urg uri url urm urr urt uru utb ute uti utl utm utr utt utu uue uug uum uur uut uuu