b-p bbb bbg bbi bbo bbp bgb bgg bgi bgo bgp bi- bib big bii bio bip bob bog boi boo bop bpb bpg bpi bpo bpp g-p gbg gbi gbo gbp ggb ggg ggi ggo ggp gib gig gii gio gip gob gog goi goo gop gpb gpg gpi gpo gpp ibb ibg ibi ibo ibp igb igg igi igo igp iib iii iio iip io- iob iog ioi ioo iop ipb ipg ipi ipo ipp o-i ob- obb obg obi obo obp ogg ogi ogo ogp oib oii oio oip oo- oob oog ooi ooo oop op- opb opg opi opo opp p-p pbb pbg pbi pbo pbp pgb pgg pgi pgo pgp pib pig pii pio pip pob pog poi poo pop ppb ppg ppi ppo ppp