-er b-u bbb bbe bbg bbr bbu bbw be- beb bee beg ber beu bew bez bgb bge bgg bgr bgu bgw bgz brb bre brg brr bru brw brz bub bue bug bur buu buw buz bwb bwg bwr bwu bze bzr bzu bzz ebb ebe ebg ebr ebu ebw eeb eee eeg eer eew egb ege egg egr egu egw erb ere erg err eru erw erz eu- eub eue eug eur ewb ewe ewr ewu eww eze ezr ezz gbe gbg gbr gbu gbw gbz ge- geb gee geg ger geu gew gez ggb ggg ggr ggu ggw ggz grb gre grg grr gru grw gu- gub gue gug gur guu guz gwb gwe gwg gwr gwu gzr gzu rbb rbe rbg rbr rbu rbw re- reb ree reg rer reu rew rez rgb rge rgg rgr rgw rrb rrg rrr rru rub rue rug rur ruu ruz rwb rwe rwr rwu rzb rze ubb ube ubg ubr ubu ubw ueb uee ueg uer uew ugb uge ugg ugr ugu ur- urb ure urg urr uru urw urz uue uug uur uuu uwb uwe uwg uwr uww uzb uzu wbb wbe wbg wbr wbw wbz web wee weg wer wew wez wgb wgr wgw wgz wr- wre wrg wrr wru wrw wub wue wug wur wuz wwe wwu www wzu z-g zbb zbr zbw zeb zee zer zez zgb zgg zub zug zur zuz zzr zzz