A coherent set of data and code is under no circumstances {TAIL ~ output} from the apparatus to the data system of {HEAD ~ lower secrecy and security level} 
A coherent set of data and code is under no circumstances { TAIL ~ output } from the apparatus to the data system of { HEAD ~ lower secrecy and security level }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD