g-p ggg ggo ggp ggs gog goo gop gos goy gpg gpo gpp gps gsg gso gsp gss gy- gyo gyp gys ogg ogo ogp ogs ogy oo- oog ooo oop oos op- opg opo opp ops opy os- osg oso osp oss oyo oys p-p pgg pgo pgp pgs pgy pog poo pop pos poy ppg ppo ppp pps ps- psg pso psp pss psy py- pyg pyo pys sgg sgo sgp sgs sog soo sop sos soy spg spo spp sps spy ss- ssg sso ssp sss sy- syg syp sys ygo yog yoo yop yos yoy ypg ypo yps ysg yso ysp yss ysy yyg yys yyy