-er eee eef eeg eek een eer ef- efe eff efg efi efr ege egf egg egi egn egr eie eif eig eii eik ein eir eke ekf ekg eki ekr en- ene enf eng eni enk enn enr ere erf erg eri erk ern err fee fef feg fei fek fen fer ffe fff ffg ffi ffk ffn ffr fge fgf fgg fgi fgn fgr fie fif fig fii fik fin fir fkf fkg fki fkk fne fnf fng fni fnk fnn fnr fre frf frg fri frk frn frr ge- gee gef geg gei gek gen ger gfe gff gfi gfk gfr ggg ggi ggn ggr gie gif gig gii gik gin gir gkn gne gnf gni gnn gnr gre grf grg gri grk grn grr i-f ie- iee ief ieg iei iek ien ier ife iff ifg ifi ifn ifr ige igf igg igi igk ign igr iie iif iii iin iir ike ikf iki ikk ikr in- ine inf ing ini ink inn inr ir- ire irf irg iri irk irn irr ke- kee kef keg kei kek ken ker kff kfg kfi kgf kgi kie kif kig kii kik kin kir kke kki kkk kkn kkr kn- kne knf kng kni knk knn knr krf krg kri krk krn krr n-i ne- nee nef neg nei nek nen ner nfe nff nfi nfk nfn nfr nge ngf ngg ngi ngk ngn nie nif nig nii nik nin nir nke nkf nki nkk nkn nkr nne nnf nng nni nnk nnn nre nrf nrg nri nrk nrn nrr re- ree ref reg rei rek ren rer rfe rff rfg rfi rfk rfn rfr rge rgf rgg rgi rgk rgn rgr rie rif rig rii rik rin rir rke rkf rkg rkk rng rni rnn rnr rrf rrg rri rrk rrn rrr