-er b-u bbb bbe bbi bbo bbq bbr bbt bbu be- beb bee bei beo beq ber bet beu bi- bib bie bii bio bir bit biu bob boe boi boo boq bor bot bou bqe bqt brb bre bri bro brq brr brt bru btb bte bti bto btq btr btt btu bub bue bui buo bur but buu ebb ebe ebi ebo ebq ebr ebt ebu eeb eee eeo eer eet eib eie eii eio eir eit eiu eo- eob eoe eoi eoo eoq eor eot eou eqe eqq eqt equ erb ere eri ero erq err ert eru etb ete eti eto etr ett etu eu- eub eue eui eur eut ibb ibe ibi ibo ibr ibt ibu ie- iee iei ier iet iib iie iii iio iir iit iiu io- iob ioe ioi ioo ior iot iou iqe iqt iqu ir- irb ire iri iro irq irr irt iru itb ite iti ito itq itt itu iu- iub iue iui iur iut o-i ob- obb obe obi obo obr obt obu oeb oee oei oeo oer oet oib oie oii oio oir oit oiu oo- oob ooi ooo oor oot oqb oqo or- orb ore ori oro orr ort oru ot- otb ote oti oto otr ott otu ou- oue oui ouo our out qbe qbq qee qeo qet qie qio qir qit qiu qoi qoo qor qqq qqu qrb qre qri qrt qru qti qto qtq qtr qu- que qui quo qur qut rbb rbe rbi rbo rbr rbt rbu re- reb ree rei reo req rer ret reu rib rie rii rio riq rir rit rob roe roi roo ror rot rou rrb rri rrq rrr rrt rru rtb rte rti rto rtq rtr rtt rtu rub rue rui ruo rur rut ruu tbb tbe tbi tbo tbr tbt tbu te- teb tee tei teo teq ter tet teu tib tie tii tio tir tit tiu to- tob toe toi too toq tor tot tou tqo trb tre tri tro trq trr trt tru ttb tte tti tto ttr ttt ttu tub tue tui tuo tur tut tuu ubb ube ubi ubo ubr ubt ubu ueb uee uei uer uet uib uie uii uio uiq uir uit uiu uob uoe uoo uor uot ur- urb ure uri uro urr urt uru utb ute uti uto utr utt utu uue uur uut uuu