<http://schema.org/description>
"&lt;p&gt;It is common to machine several identical workpiece attributes from within a single program.  Consider the four identical circular counter-bored holes that must be milled in the workpiece shown in Figure 1. &lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/columns/shifting-program-zero-on-machining-centers>