-up nnn nno nnp nns nnt nnu no- non noo nop nos not nou npn npo npp nps npt npu nsn nso nsp nss nst nsu ntn nto ntp nts ntt ntu nun nuo nup nus nut nuu on- onn ono onp ons ont onu oo- oon ooo oop oos oot op- opn opo opp ops opt os- osn oso osp oss ost osu ot- otn oto otp ots ott otu ou- oun ouo oup ous out p-p pn- pnn pno pnp pns pnt pnu pon poo pop pos pot pou ppn ppo ppp pps ppt ppu ps- psn pso psp pss pst psu pt- ptn pto ptp pts ptt ptu pun pup pus put puu snn sno snp sns snt snu son soo sop sos sot sou spn spo spp sps spt spu ss- ssn sso ssp sss sst ssu stn sto stp sts stt stu sun suo sup sus sut suu tnn tno tnp tns tnt to- ton too top tos tot tou tpn tpo tpp tps tpt tpu tsn tso tsp tss tst tsu ttn tto ttp tts ttt ttu tun tuo tup tus tut tuu un- unn uno unp uns unt unu uon uoo uop uos uot up- upn upo upp ups upt upu usn uso usp uss ust usu utn uto utp uts utt utu uun uus uut uuu