-up mmm mmn mmp mms mmu mnm mnn mnp mns mnu mpm mpn mpp mps mpu msm msn msp mss msu mum mun mup mus muu nmm nmn nmp nms nmu nnm nnn nnp nns nnu npm npn npp nps npu nsm nsn nsp nss nsu num nun nup nus nuu p-p pmm pmn pmp pms pmu pn- pnm pnn pnp pns pnu ppm ppn ppp pps ppu ps- psm psn psp pss psu pum pun pup pus puu smm smn smp sms smu snm snn snp sns snu spm spn spp sps spu ss- ssm ssn ssp sss ssu sum sun sup sus suu um- umm umn ump ums umu un- unm unn unp uns unu up- upm upn upp ups upu usm usn usp uss usu uum uun uus uuu