-er eee eef een eep eer eet ef- efe eff efi efp efr eft eie eif eii ein eip eir eit en- ene enf eni enn enp enr ent ep- epe epf epi epn epp epr ept ere erf eri ern erp err ert ete etf eti etn etp etr ett fee fef fei fen fep fer fet ffe fff ffi ffn ffp ffr fft fie fif fii fin fip fir fit fne fnf fni fnn fnp fnr fnt fpe fpi fpn fpp fpr fpt fre frf fri frn frp frr frt fte ftf fti ftn ftp ftr ftt i-f ie- iee ief iei ien iep ier iet ife iff ifi ifn ifp ifr ift iie iif iii iin iip iir iit in- ine inf ini inn inp inr int ipe ipf ipi ipn ipp ipr ipt ir- ire irf iri irn irp irr irt ite itf iti itn itp itt n-i ne- nee nef nei nen nep ner net nfe nff nfi nfn nfp nfr nft nie nif nii nin nip nir nit nne nnf nni nnn nnp nnt npe npf npi npn npp npr npt nre nrf nri nrn nrp nrr nrt nte ntf nti ntn ntp ntr ntt p-p pee pef pei pen pep per pet pfe pff pfi pfn pfp pfr pft pie pif pii pin pip pir pit pn- pne pnf pni pnn pnp pnr pnt ppe ppf ppi ppn ppp ppr ppt pre prf pri prn prp prr prt pt- pte ptf pti ptn ptp ptr ptt re- ree ref rei ren rep rer ret rfe rff rfi rfn rfp rfr rft rie rif rii rin rip rir rit rni rnn rnp rnr rnt rpe rpf rpi rpn rpp rpr rpt rrf rri rrn rrp rrr rrt rte rtf rti rtn rtp rtr rtt te- tee tef tei ten tep ter tet tfe tff tfi tfn tfp tfr tft tie tif tii tin tip tir tit tne tnf tni tnn tnp tnr tnt tpe tpf tpi tpn tpp tpr tpt tre trf tri trn trp trr trt tte ttf tti ttn ttp ttr ttt