m-o mmm mmo mmp mms mmx mom moo mop mos mox moy mpm mpo mpp mps mpx msm mso msp mss msx msy mxp mxs my- mym myo mys myx om- omm omo omp oms omx omy oo- oom ooo oop oos oox op- opm opo opp ops opx opy os- osm oso osp oss osx ox- oxo oxx oxy oyo oys p-p pmm pmo pmp pms pmx pom poo pop pos pox poy ppm ppo ppp pps ppx ps- psm pso psp pss psx psy pxm pxs py- pym pyo pys pyx smm smo smp sms smx smy som soo sop sos sox soy spm spo spp sps spx spy ss- ssm sso ssp sss ssx sxm sxs sy- sym syp sys syx xmm xmo xmp xms xmx xom xoo xop xos xox xpm xpo xpp xps xsm xsp xss xxo xxp xxx xxy xyp xyy ymm ymo yms yom yoo yop yos yox yoy ypo yps ysm yso ysp yss ysy yxy yys yyy