-er eee eek een eep eer eet eie eii eik ein eip eir eit eke eki ekp ekr ekt en- ene eni enk enn enp enr ent ep- epe epi epn epp epr ept ere eri erk ern erp err ert ete eti etk etn etp etr ett ie- iee iei iek ien iep ier iet iie iii iin iip iir iit ike iki ikk ikr ikt in- ine ini ink inn inp inr int ipe ipi ipn ipp ipr ipt ir- ire iri irk irn irp irr irt ite iti itk itn itp itt k-t ke- kee kei kek ken kep ker ket kie kii kik kin kip kir kit kke kki kkk kkn kkp kkr kkt kn- kne kni knk knn knp knr knt kpe kpi kpk kpn kpp kpr kpt kri krk krn krp krr krt kte ktk ktn ktp ktr ktt n-i ne- nee nei nek nen nep ner net nie nii nik nin nip nir nit nke nki nkk nkn nkp nkr nkt nne nni nnk nnn nnp nnt npe npi npn npp npr npt nre nri nrk nrn nrp nrr nrt nte nti ntk ntn ntp ntr ntt p-p pee pei pek pen pep per pet pie pii pik pin pip pir pit pke pki pkn pkp pkr pkt pn- pne pni pnk pnn pnp pnr pnt ppe ppi ppk ppn ppp ppr ppt pre pri prk prn prp prr prt pt- pte pti ptk ptn ptp ptr ptt re- ree rei rek ren rep rer ret rie rii rik rin rip rir rit rke rkk rkp rkt rni rnn rnp rnr rnt rpe rpi rpk rpn rpp rpr rpt rri rrk rrn rrp rrr rrt rte rti rtk rtn rtp rtr rtt te- tee tei tek ten tep ter tet tie tii tik tin tip tir tit tke tkk tkp tkr tkt tne tni tnk tnn tnp tnr tnt tpe tpi tpk tpn tpp tpr tpt tre tri trk trn trp trr trt tte tti ttk ttn ttp ttr ttt