-up b-p b-u bbb bbi bbn bbo bbp bbs bbu bi- bib bii bin bio bip bis biu bnb bni bnn bno bnp bns bnu bob boi bon boo bop bos bou bpb bpi bpn bpo bpp bps bpu bsb bsi bsn bso bsp bss bsu bub bui bun buo bup bus buu ibb ibi ibn ibo ibp ibs ibu iib iii iin iio iip iis iiu in- inb ini inn ino inp ins inu io- iob ioi ion ioo iop ios iou ipb ipi ipn ipo ipp ips ipu is- isb isi isn iso isp iss isu iu- iub iui iup ius n-i nbb nbi nbn nbo nbp nbs nbu nib nii nin nio nip nis niu nnb nni nnn nno nnp nns nnu no- nob noi non noo nop nos nou npb npi npn npo npp nps npu nsb nsi nsn nso nsp nss nsu nub nui nun nuo nup nus nuu o-i ob- obb obi obn obo obp obs obu oib oii oin oio oip ois oiu on- onb oni onn ono onp ons onu oo- oob ooi oon ooo oop oos op- opb opi opn opo opp ops os- osb osi osn oso osp oss osu ou- oui oun ouo oup ous p-p pbb pbi pbn pbo pbp pbs pbu pib pii pin pio pip pis piu pn- pnb pni pnn pno pnp pns pnu pob poi pon poo pop pos pou ppb ppi ppn ppo ppp pps ppu ps- psb psi psn pso psp pss psu pub pui pun pup pus puu sbb sbi sbn sbo sbp sbs sbu sib sii sin sio sip sis siu snb sni snn sno snp sns snu sob soi son soo sop sos sou spb spi spn spo spp sps spu ss- ssb ssi ssn sso ssp sss ssu sub sui sun suo sup sus suu ubb ubi ubn ubo ubp ubs ubu uib uii uin uio uip uis uiu un- unb uni unn uno unp uns unu uob uon uoo uop uos up- upb upi upn upo upp ups upu usb usi usn uso usp uss usu uun uus uuu