{HEAD ~ The output} from {TAIL ~ the accelerometers} may be integrated to quantify movement of the array 
from
{ HEAD ~ The output } from { TAIL ~ the accelerometers } may be integrated to quantify movement of the array
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH