Hi Folks,

Consider this statement:

  "The length of the Yangtze River is 6300 kilometers."

What is a "kilometer"?

1. Is kilometer a class?  Is 6300 an instance of the kilometer class?
     kilometer class: {..., 6300, ...}

2. Is kilometer a function? e.g., kilometer(Yangtze) -->  6300
   In general: kilometer(physical object) -->  number
   "The kilometer function maps a physical object to a number."

3. Is kilometer a property? e.g., a property of the Yangtze River 
   is kilometer (this doesn't quite sound right; perhaps there's
   another way of expressing this that is more natural?)

4. Is kilometer a label?  If so, then what's a label?

Or is it something else?  /Roger


-----------------------------------------------------------------
The xml-dev list is sponsored by XML.org <http://www.xml.org> , an
initiative of OASIS <http://www.oasis-open.org> 

The list archives are at http://lists.xml.org/archives/xml-dev/

To subscribe or unsubscribe from this list use the subscription
manager: <http://lists.xml.org/ob/adm.pl>