In {HEAD ~ addition}, {TAIL ~ high frequency power} has a more specific effect on disabling the central nervous system 
In { HEAD ~ addition } , { TAIL ~ high frequency power } has a more specific effect on disabling the central nervous system
OTH HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH