In {TAIL ~ addition}, the risk can be factored into the initial planning stage so as to include {HEAD ~ an expected predictive error} in the initial planning 
In { TAIL ~ addition } , the risk can be factored into the initial planning stage so as to include { HEAD ~ an expected predictive error } in the initial planning
OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH