The worker moves {HEAD ~ the belt sander} 30 longitudinally along {TAIL ~ the column} to remove unwanted matter, such as seam line 14 
longitudinally along
The worker moves { HEAD ~ the belt sander } 30 longitudinally along { TAIL ~ the column } to remove unwanted matter , such as seam line 14
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH