-er b-u bbb bbd bbe bbi bbn bbo bbq bbr bbu bdb bdd bde bdi bdo bdq bdr bdu be- beb bed bee bei ben beo beq ber beu bi- bib bid bie bii bin bio bir biu bnb bnd bne bni bnn bno bnr bnu bob bod boe boi bon boo boq bor bou bqd bqe brb brd bre bri brn bro brq brr bru bub bud bue bui bun buo bur buu dbb dbd dbe dbi dbn dbo dbq dbr dbu ddb ddd dde ddi ddn ddo ddq ddr ddu de- deb ded dee dei den deo deq der deu di- dib did die dii din dio diq dir diu dnb dnd dne dni dnn dno dnq dnr dob dod doe doi don doo doq dor dou dqe dqn drb drd dre dri drn dro drq drr dru dub dud due dui dun duo dur ebb ebd ebe ebi ebn ebo ebq ebr ebu ed- edb edd ede edi edn edo edr edu eeb eed eee een eeo eer eib eid eie eii ein eio eir eiu en- enb end ene eni enn eno enr enu eo- eob eod eoe eoi eon eoo eoq eor eou eqe eqn eqq equ erb erd ere eri ern ero erq err eru eu- eub eud eue eui eun eur i-d ibb ibd ibe ibi ibn ibo ibr ibu idb idd ide idi idn ido idq idr idu ie- ied iee iei ien ier iib iid iie iii iin iio iir iiu in- inb ind ine ini inn ino inq inr inu io- iob iod ioe ioi ion ioo ior iou iqd iqe iqu ir- irb ird ire iri irn iro irq irr iru iu- iub iud iue iui iur n-i nbb nbd nbe nbi nbn nbo nbr nbu ndb ndd nde ndi ndn ndo ndr ndu ne- neb ned nee nei nen neo ner neu nib nid nie nii nin nio niq nir niu nnb nne nni nnn nno nnu no- nob nod noe noi non noo nor nou nrb nrd nre nri nrn nro nrr nru nub nud nue nui nun nuo nuq nur nuu o-i ob- obb obd obe obi obn obo obr obu odb odd ode odi odn odo odr odu oeb oed oee oei oen oeo oer oib oid oie oii oin oio oir oiu on- onb ond one oni onn ono onr onu oo- oob ood ooi oon ooo oor oqb oqo or- orb ord ore ori orn oro orr oru ou- oud oue oui oun ouo our qbd qbe qbq qdb qdr qed qee qen qeo qid qie qin qio qir qiu qnb qnd qne qni qoi qoo qor qqq qqu qrb qre qri qru qu- qud que qui quo qur rbb rbd rbe rbi rbn rbo rbr rbu rdb rdd rde rdi rdn rdo rdr rdu re- reb red ree rei ren reo req rer reu rib rid rie rii rin rio riq rir rnb rnd rni rnn rno rnr rnu rob rod roe roi ron roo ror rou rqn rrb rrd rri rrn rrq rrr rru rub rud rue rui run ruo rur ruu ubb ube ubi ubn ubo ubr ubu udb udd ude udi udn udo udr udu ueb ued uee uei uen uer uib uid uie uii uin uio uiq uir uiu un- unb und une uni unn uno unq unr unu uob uod uoe uon uoo uor ur- urb urd ure uri urn uro urr uru uue uun uur uuu