{HEAD ~ The pattern lines} constituting {TAIL ~ the driving pattern} 2 and the pattern lines constituting the pickup pattern 4 are alternately arranged 
constituting
{ HEAD ~ The pattern lines } constituting { TAIL ~ the driving pattern } 2 and the pattern lines constituting the pickup pattern 4 are alternately arranged
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH