-er -ol b-u bbb bbe bbg bbl bbo bbr bbt bbu be- beb bee beg bel beo ber bet beu bez bgb bge bgg bgl bgo bgr bgt bgu bgz blb ble blg bll blo blr blt blu blz bob boe bog bol boo bor bot bou boz brb bre brg brl bro brr brt bru brz btb bte btg btl bto btr btt btu btz bub bue bug bul buo bur but buu buz bze bzo bzr bzu bzz ebb ebe ebg ebl ebo ebr ebt ebu eeb eee eeg eel eeo eer eet egb ege egg egl ego egr egt egu elb ele elg ell elo elr elt elu elz eo- eob eoe eog eol eoo eor eot eou erb ere erg erl ero err ert eru erz etb ete etg etl eto etr ett etu etz eu- eub eue eug eul eur eut eze ezo ezr ezz gbe gbg gbl gbo gbr gbt gbu gbz ge- geb gee geg gel geo ger get geu gez ggb ggg ggo ggr ggt ggu ggz glb gle glg gll glo glr glt glu glz gob goe gog gol goo gor got gou goz grb gre grg grl gro grr grt gru gtb gte gtg gtl gto gtr gtt gtu gu- gub gue gug gul guo gur gut guu guz gzo gzr gzu lbb lbe lbg lbl lbo lbr lbt lbu leb lee leg lel leo ler let leu lez lgb lge lgg lgl lgo lgr lgt lgu llb lle llg lll llo llr llt llu llz lob loe log lol loo lor lot lou loz lrb lrg lro lrr lrt lru lrz ltb lte ltg ltl lto ltr ltt ltu ltz lub lue lug lul luo lur lut luu luz lzo lzr lzu ob- obb obe obg obl obo obr obt obu oeb oee oeg oel oeo oer oet oge ogg ogl ogo ogt olb ole olg oll olo olt olu oo- oob oog ool ooo oor oot or- orb ore org orl oro orr ort oru orz ot- otb ote otg otl oto otr ott otu otz ou- oue oul ouo our out oze ozo ozt ozu ozz rbb rbe rbg rbl rbo rbr rbt rbu re- reb ree reg rel reo rer ret reu rez rgb rge rgg rgo rgr rgt rle rlg rll rlo rlr rlt rlu rob roe rog rol roo ror rot rou roz rrb rrg rrl rrr rrt rru rtb rte rtg rtl rto rtr rtt rtu rtz rub rue rug ruo rur rut ruu ruz rzb rze rzo tbb tbe tbg tbl tbo tbr tbt tbu tbz te- teb tee teg tel teo ter tet teu tez tgb tge tgg tgl tgo tgr tgt tgu tgz tle tlg tll tlo tlr tlt tlu tlz to- tob toe tog tol too tor tot tou toz trb tre trg trl tro trr trt tru trz ttb tte ttg ttl tto ttr ttt ttu tub tue tug tul tuo tur tut tuu tuz tze tzu ubb ube ubg ubl ubo ubr ubt ubu ueb uee ueg uel uer uet ugb uge ugg ugl ugo ugr ugt ugu ulb ule ulg ull ulo ulr ult ulu uob uoe uog uol uoo uor uot ur- urb ure urg url uro urr urt uru urz utb ute utl uto utr utt utu utz uue uug uur uut uuu uzb uzo uzu z-g zbb zbl zbr zbt zeb zee zel zeo zer zet zez zgb zgg zlr zlt zo- zob zoe zog zol zoo zor zot zou zrl zro zte ztl ztr zub zug zul zur zut zuz zzr zzt zzz