parm nocheck,maxdict imp ercc07:itrimp_ibmponeas+ercc07:poneb02s,ip12y,l0 imp ercc07:itrimp_ibmptwoas+timp03s,ip23y,l1 imp ercc07:itrimp_ibmoptas+opt03s,iopt3y,l2 imp ibmgen05s,igen5y,l5