eee eef eek een eeo eep eet ef- efe eff efi efo efp eft eie eif eii eik ein eio eip eit eke ekf eki eko ekp ekt en- ene enf eni enk enn eno enp ent eo- eoe eof eoi eok eon eoo eop eot ep- epe epf epi epn epo epp ept ete etf eti etk etn eto etp ett fee fef fei fek fen feo fep fet ffe fff ffi ffk ffn ffo ffp fft fie fif fii fik fin fip fit fkf fki fkk fkp fkt fne fnf fni fnk fnn fnp fnt foe fof foi fok fon foo fop fot fpe fpi fpk fpn fpo fpp fpt fte ftf fti ftk ftn fto ftp ftt i-f ie- iee ief iei iek ien iep iet ife iff ifi ifn ifo ifp ift iie iif iii iin iio iip iit ike ikf iki ikk iko ikt in- ine inf ini ink inn ino inp int io- ioe iof ioi ion ioo iop iot ipe ipf ipi ipn ipo ipp ipt ite itf iti itk itn ito itp itt k-t ke- kee kef kei kek ken keo kep ket kff kfi kfo kie kif kii kik kin kio kip kit kke kki kkk kkn kkp kkt kn- kne knf kni knk knn kno knp knt koe kof koi kok kon koo kop kot kpe kpf kpi kpk kpn kpo kpp kpt kte ktf ktk ktn kto ktp ktt n-i ne- nee nef nei nek nen neo nep net nfe nff nfi nfk nfn nfo nfp nft nie nif nii nik nin nio nip nit nke nkf nki nkk nkn nko nkp nkt nne nnf nni nnk nnn nno nnp nnt no- noe nof noi nok non noo nop not npe npf npi npn npo npp npt nte ntf nti ntk ntn nto ntp ntt o-i oee oef oei oen oeo oep oet of- ofe off ofi ofn ofo ofp oft oie oif oii oik oin oio oip oit oke oki okk oko okp on- one onf oni onk onn ono onp ont oo- oof ooi ook oon ooo oop oot op- ope opf opi opk opn opo opp opt ot- ote otf oti otk otn oto otp ott p-p pee pef pei pek pen peo pep pet pfe pff pfi pfk pfn pfo pfp pft pie pif pii pik pin pio pip pit pke pkf pki pkn pko pkp pkt pn- pne pnf pni pnk pnn pno pnp pnt poe pof poi pok pon poo pop pot ppe ppf ppi ppk ppn ppo ppp ppt pt- pte ptf pti ptk ptn pto ptp ptt te- tee tef tei tek ten teo tep tet tfe tff tfi tfk tfn tfo tfp tft tie tif tii tik tin tio tip tit tke tkk tko tkp tkt tne tnf tni tnk tnn tno tnp tnt to- toe tof toi tok ton too top tot tpe tpf tpi tpk tpn tpo tpp tpt tte ttf tti ttk ttn tto ttp ttt