-up ddd ddm ddp dds ddu dmd dmm dmp dms dmu dpd dpm dpp dps dpu dsd dsm dsp dss dsu dud dum dup dus mdd mdm mdp mds mdu mmd mmm mmp mms mmu mpd mpm mpp mps mpu msd msm msp mss msu mud mum mup mus muu p-p pdd pdm pdp pds pdu pmd pmm pmp pms pmu ppd ppm ppp pps ppu ps- psd psm psp pss psu pud pum pup pus puu sdd sdm sdp sds sdu smd smm smp sms smu spd spm spp sps spu ss- ssd ssm ssp sss ssu sud sum sup sus suu udd udm udp uds udu um- umd umm ump ums umu up- upd upm upp ups upu usd usm usp uss usu uum uus uuu