mmmm mmms mmxx mmyy momo moms momy moop moos mopp mops mopy moso moss mosy moxo moxy moyo mppp mpps mpys msmm msms msop mspp mspy mssm mssp mxpx mymp mymy myo- myos mypo mys- myss myx- myxo myxy myys omo- omoo omox omps ooms oooo ooos oops opms opo- opos oppo opps oppy opsm opsy osm- osmo osoo osos ospm osso ossy osyp oxo- oxos oxox oxxo oxy- oyss pmmp pmos pmpm pmpo pomo pomp poms pomy poop poos pop- popo popp pops popy poso poss posy poxy poyo poys ppms ppos pppo pppp ppps ppss psos pspp psps pssm psso psy- psys pym- pyms pyo- pyos pypy pyss s-os smos smox smoy smps smsp smss somm somo somy soom soop soos sooy sopo sopp sops sopy soso soss soxs soyo soys spms spoo spop spos spox spoy spps spso spsp spss spy- spys ssop sspo ssps sspx sssm ssss sym- syms sypo syso syss xmms xmos xmpp xoom xoxo xoyo xxxo xxxx xxxy yomo yomp yoop yopo yopy yoso yoyo ysop yyyy