Yet another aspect of the present invention comprises orienting the symbol by identifying {HEAD ~ at least a portion} of {TAIL ~ the data cell border} 
of
Yet another aspect of the present invention comprises orienting the symbol by identifying { HEAD ~ at least a portion } of { TAIL ~ the data cell border }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL