-er bbb bbe bbi bbk bbr bbt bbw be- beb bee bei bek ber bet bew bi- bib bie bii bik bir bit biw bkb bke bkk bkr bkt bkw brb bre bri brk brr brt brw btb bte bti btk btr btt btw bwb bwi bwk bwr ebb ebe ebi ebk ebr ebt ebw eeb eee eek eer eet eew eib eie eii eik eir eit ekb eke eki ekr ekt erb ere eri erk err ert erw etb ete eti etk etr ett etw ewb ewe ewi ewk ewr ewt eww ibb ibe ibi ibk ibr ibt ibw ie- iee iei iek ier iet iib iie iii iir iit iiw ikb ike iki ikk ikr ikt ir- irb ire iri irk irr irt itb ite iti itk itt iwb iwe iwi iwk iwr iwt iww k-t kbb kbe kbi kbk kbr kbw ke- keb kee kei kek ker ket kew kib kie kii kik kir kit kkb kke kki kkk kkr kkt kri krk krr krt krw ktb kte ktk ktr ktt ktw kw- kwi kwk kwt kww rbb rbe rbi rbk rbr rbt rbw re- reb ree rei rek rer ret rew rib rie rii rik rir rit rkb rke rkk rkt rrb rri rrk rrr rrt rtb rte rti rtk rtr rtt rtw rwb rwe rwi rwr tbb tbe tbi tbk tbr tbt te- teb tee tei tek ter tet tew tib tie tii tik tir tit tiw tkb tke tkk tkr tkt tkw trb tre tri trk trr trt trw ttb tte tti ttk ttr ttt ttw twb twe twi twr twt tww wbb wbe wbi wbr wbt wbw web wee wei wek wer wet wew wib wie wii wik wir wit wkb wke wkr wkt wkw wr- wre wri wrk wrr wrt wrw wtb wti wtr wtt wtw wwe wwi wwt www