-up nnn nnp nns nnu npn npp npr nps npu nrn nrp nrr nrs nru nry nsn nsp nsr nss nsu nsy nun nup nur nus nuu nuy nyn nyp nys nyu nyy p-p pn- pnn pnp pnr pns pnu pny ppn ppp ppr pps ppu prn prp prr prs pru pry ps- psn psp psr pss psu psy pun pup pur pus puu puy py- pyn pyr pys pyu rnn rnp rnr rns rnu rny rpn rpp rpr rps rpu rrn rrp rrr rrs rru rsn rsp rsr rss rsu run rup rur rus ruu ruy ry- ryn ryr rys ryu ryy snn snp snr sns snu sny spn spp spr sps spu spy sr- srn srp srr srs sry ss- ssn ssp ssr sss ssu sun sup sur sus suu suy sy- syn syp syr sys syu un- unn unp unr uns unu uny up- upn upp upr ups upu ur- urn urp urr urs uru ury usn usp usr uss usu uun uur uus uuu uys uyu ynn ynp yns ynu yny yps ypu yrn yrp yrs yru ysp ysr yss ysu ysy yun yup yur yus yuu yuy yys yyu yyy