m-o mmm mmo mmp mms mom moo mop mos moy mpm mpo mpp mps msm mso msp mss msy my- mym myo mys om- omm omo omp oms omy oo- oom ooo oop oos op- opm opo opp ops opy os- osm oso osp oss oyo oys p-p pmm pmo pmp pms pom poo pop pos poy ppm ppo ppp pps ps- psm pso psp pss psy py- pym pyo pys smm smo smp sms smy som soo sop sos soy spm spo spp sps spy ss- ssm sso ssp sss sy- sym syp sys ymm ymo yms yom yoo yop yos yoy ypo yps ysm yso ysp yss ysy yys yyy