{TAIL ~ The substrate} 1 is formed with {HEAD ~ a relatively large hole} and a plurality of smaller holes surrounding the large hole 
{ TAIL ~ The substrate } 1 is formed with { HEAD ~ a relatively large hole } and a plurality of smaller holes surrounding the large hole
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH