<http://schema.org/description>
"&lt;p&gt;We have all run across cases in which matching parts that measure \u201Cokay\u201D don\u2019t seem to quite fit together. This often happens with ID and OD parts that tend to have very tight clearances, typically within a few 0.0001 inch.&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/columns/approximating-geometry-measurement>