-ey eee een eep ees eey en- ene enn enp ens eny ep- epe epn epp eps es- ese esn esp ess esy eye eyn eyp eys ne- nee nen nep nes ney nne nnn nnp nns npe npn npp nps nse nsn nsp nss nsy nye nyn nyp nys nyy p-p pee pen pep pes pey pn- pne pnn pnp pns pny ppe ppn ppp pps ps- pse psn psp pss psy py- pye pyn pys se- see sen sep ses sey sne snn snp sns sny spe spn spp sps spy ss- sse ssn ssp sss sy- sye syn syp sys yee yen yep yes yey yne ynn ynp yns yny yps yse ysp yss ysy yye yys yyy