{HEAD ~ A composite masonry block} having {TAIL ~ a front surface} and a back surface which are adjoined by first and second side surfaces, as well as a top surface and a bottom surface each lying adjacent the front, back, and first and second side surfaces 
having
{ HEAD ~ A composite masonry block } having { TAIL ~ a front surface } and a back surface which are adjoined by first and second side surfaces , as well as a top surface and a bottom surface each lying adjacent the front , back , and first and second side surfaces
HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH