M: MET
mt, a/u/y/n/h,r/g/c/p/i,f/s/l/o,m,e,t
au/u/n/h,rgcp/i,f/s/l/o,m, epon
med(A16,C10),med(a/ur/y/n/h,r/g/c/p/i,f/s/o,e,t)