mmmm mmor mmpr mmrp mnop mnpo momo mon- monn mono moon moop moor mopp morn moro mppp mpro mprp mron nmon nnnn nnpr nom- nomo non- nonn nono noo- noon nooo noop noor nor- norm norn noro norr nprm nron nrpn omn- omo- omon omoo omor omro onno onon onor oooo opo- opon opor oppo ormn ormo orno oro- orom oron oror orro pmmp pmpm pmpo pnnm pnom pnon pnpo pnpp pnro pomo pomp pono ponp poon poop poor pop- popo popp porn poro porr pppn pppo pppp pprm prnp pro- prom pron proo prop prrm rmon rmrp romm romo romp rono room roon roop roor ropo roro rpon rppn rrmp rrrr