-er -ic -up b-p b-u bbb bbc bbe bbf bbi bbn bbo bbp bbr bbs bbt bbu bcb bcc bce bcf bci bcn bco bcp bcr bcs bct bcu be- beb bec bee bef bei ben beo bep ber bes bet beu bfb bfc bfe bff bfi bfn bfo bfp bfr bfs bft bfu bi- bib bic bie bif bii bin bio bip bir bis bit biu bnb bnc bne bnf bni bnn bno bnp bnr bns bnt bnu bob boc boe bof boi bon boo bop bor bos bot bou bpb bpc bpe bpf bpi bpn bpo bpp bpr bps bpt bpu brb bre brf bri brn bro brp brr brs brt bru bsb bsc bse bsf bsi bsn bso bsp bsr bss bst bsu btb btc bte btf bti btn bto btp btr bts btt btu bub buc bue buf bui bun buo bup bur bus but buu c-- cbb cbc cbe cbf cbi cbn cbo cbp cbr cbs cbt cbu ccb ccc cce ccf cci ccn cco ccp ccr ccs cct ccu ce- ceb cec cee cef cei cen ceo cep cer ces cet ceu cfb cfc cfe cff cfi cfn cfo cfp cfr cfs cft cfu ci- cib cic cie cif cii cin cio cip cir cis cit ciu cn- cnb cnc cne cnf cni cnn cno cnp cnr cns cnt cnu co- cob coc coe cof coi con coo cop cor cos cot cou cpb cpc cpe cpf cpi cpn cpo cpp cpr cps cpt cpu crb crc cre crf cri crn cro crp crr crs crt cru csb csc cse csf csi csn cso csp csr css cst csu ctb ctc cte ctf cti ctn cto ctp ctr cts ctt ctu cub cuc cue cuf cui cun cuo cup cur cus cut cuu ebb ebc ebe ebf ebi ebn ebo ebp ebr ebs ebt ebu ec- ecb ecc ece ecf eci ecn eco ecr ecs ect ecu eeb eec eee eef een eeo eep eer ees eet ef- efb efc efe eff efi efo efp efr efs eft eib eic eie eif eii ein eio eip eir eis eit eiu en- enb enc ene enf eni enn eno enp enr ens ent enu eo- eob eoc eoe eof eoi eon eoo eop eor eos eot eou ep- epb epc epe epf epi epn epo epp epr eps ept epu erb erc ere erf eri ern ero erp err ers ert eru es- esb esc ese esf esi esn eso esp esr ess est esu etb etc ete etf eti etn eto etp etr ets ett etu eu- eub euc eue euf eui eun eup eur eus eut fbb fbc fbe fbf fbi fbn fbo fbp fbr fbs fbt fbu fcb fcc fce fcf fci fcn fco fcp fcr fcs fct fcu feb fec fee fef fei fen feo fep fer fes fet feu ffc ffe fff ffi ffn ffo ffp ffr ffs fft ffu fib fic fie fif fii fin fip fir fis fit fiu fnb fnc fne fnf fni fnn fnp fnr fns fnt fnu fob foc foe fof foi fon foo fop for fos fot fou fpb fpc fpe fpi fpn fpo fpp fpr fps fpt fpu frb frc fre frf fri frn fro frp frr frs frt fru fsb fsc fse fsf fsi fsn fso fsp fsr fss fst fsu ftb ftc fte ftf fti ftn fto ftp ftr fts ftt ftu fub fue fuf fui fun fuo fup fur fus fut fuu i-f ibb ibc ibe ibf ibi ibn ibo ibp ibr ibs ibt ibu icb icc ice icf ici icn ico icp icr ics ict icu ie- iec iee ief iei ien iep ier ies iet ifb ifc ife iff ifi ifn ifo ifp ifr ifs ift ifu iib iic iie iif iii iin iio iip iir iis iit iiu in- inb inc ine inf ini inn ino inp inr ins int inu io- iob ioc ioe iof ioi ion ioo iop ior ios iot iou ipb ipc ipe ipf ipi ipn ipo ipp ipr ips ipt ipu ir- irb irc ire irf iri irn iro irp irr irs irt iru is- isb isc ise isf isi isn iso isp isr iss ist isu itb itc ite itf iti itn ito itp its itt itu iu- iub iuc iue iui iup iur ius iut n-i nbb nbc nbe nbf nbi nbn nbo nbp nbr nbs nbt nbu ncb ncc nce ncf nci ncn nco ncp ncr ncs nct ncu ne- neb nec nee nef nei nen neo nep ner nes net neu nfb nfc nfe nff nfi nfn nfo nfp nfr nfs nft nfu nib nic nie nif nii nin nio nip nir nis nit niu nnb nnc nne nnf nni nnn nno nnp nns nnt nnu no- nob noc noe nof noi non noo nop nor nos not nou npb npc npe npf npi npn npo npp npr nps npt npu nrb nrc nre nrf nri nrn nro nrp nrr nrs nrt nru nsb nsc nse nsf nsi nsn nso nsp nsr nss nst nsu ntb ntc nte ntf nti ntn nto ntp ntr nts ntt ntu nub nuc nue nui nun nuo nup nur nus nut nuu o-i ob- obb obc obe obf obi obn obo obp obr obs obt obu oc- ocb occ ocf oci ocn oco ocp ocr ocs oct ocu oeb oec oee oef oei oen oeo oep oer oes oet of- ofb ofc ofe off ofi ofn ofo ofp ofr ofs oft ofu oib oic oie oif oii oin oio oip oir ois oit oiu on- onb onc one onf oni onn ono onp onr ons ont onu oo- oob ooc oof ooi oon ooo oop oor oos oot op- opb opc ope opf opi opn opo opp opr ops opt or- orb orc ore orf ori orn oro orp orr ors ort oru os- osb osc ose osf osi osn oso osp osr oss ost osu ot- otb otc ote otf oti