COBRA-ONT v0.4 Tutorial 5
--------------------------

The following example shows how to describe a digital image
document (e.g., digital photo) and associated properties.

Example 1. Consider the picture located at the URL

http://users.ebiquity.org/~hchen4/photo/fotos/ubicomp03/IMG_2436.jpg

It is taken by Harry Chen at UbiComp 2003 (Seattle, WA) Oct. 13,
2003 at 21:13:10. In this picture Harry is standing next to a
Proactive Display demo screen.

<pto:Photo 
 rdf:ID="http://users.ebiquity.org/~hchen4/photo/fotos/ubicomp03/IMG_2436.jpg">

   <pto:takenBy rdf:resource="http://umbc.edu/~hchen4"/>

   <pto:depicts rdf:resource="http://umbc.edu/~hchen4"/>
   
   <pto:takenOn>
      <tme:InstantThing rdf:resource="urn:some-random-uri">
         <tme:hasInstantDatatypeDescription 
	    rdf:datatype="&xsd;dataTime">
            2003-10-13T21:13:10
         </tme:hasInstantDatatypeDescription>
      </tme:InstantThing>
   </pto:takenOn>

   <pto:takenAtLocation>
     <spc:City rdf:about="http://www.cityofseattle.net"/>
   </pto:takenAtLocation>

   <doc:downloadURI rdf:datatype="&xsd;anyURI">
     http://users.ebiquity.org/~hchen4/photo/fotos/ubicomp03/IMG_2436.jpg
   </doc:downloadURI>
 
   <doc:fileSize>
     <doc:FileSizeDescription rdf:about="urn:some-random-uri-2">
     	<doc:unit rdf:resource="&doc;KBytes"/>
	<doc:size rdf:datatype="&xsd;unsignedLong">
	   294
        </doc:size>
     </doc:FileSizeDescription>
   </doc:fileSize>
   
   <img:resolutionWidthInPixel rdf:datatype="&xsd;positiveInteger">
      1024
   </img:resolutionWidthInPixel>

   <img:resolutionHeightInPixel rdf:datatype="&xsd;positiveInteger">
      768
   </img:resolutionHeightInPixel>

   <doc:copyrightedBy rdf:resource="http://umbc.edu/~hchen4"/>
</pto:Photo>

======================

Assume the URI "http://www.cityofseattle.net" has been defined
with additional semantics, for example,

<spc:City rdf:ID="http://www.cityofseattle.net">
  <rdf:type rdf:resource="&rcc;SpatialRegion"/>
  <rcc:properPartOf rdf:resource="&umbc;US"/>
  <rcc:isDisconnectedFrom rdf:resource="&umbc;Maryland"/>
</spc:City>

Give the above information, an intelligent agent can reason the
picture is taken in a city which is not a part of the state Maryland,
but it is taken in the US.

For ontology namespace details, see http://cobra.umbc.edu/ontologies.html

pto = http://daml.umbc.edu/ontologies/cobra/0.4/photograph.owl
doc = http://daml.umbc.edu/ontologies/cobra/0.4/document.owl
spc = http://daml.umbc.edu/ontologies/cobra/0.4/space-basic.owl
umbc = http://daml.umbc.edu/ontologies/cobra/0.4/umbc.owl
tme = http://daml.umbc.edu/ontologies/cobra/0.4/time-basic.owl
img = http://daml.umbc.edu/ontologies/cobra/0.4/image-doc.owl