Note: these exercises assume that you have followed the instructions in <a href=sesame-setup.html>sesame-setup.html</a><p>

<h2>Create a repository</h2>
Sesame allows you to create multiple "repositories" or graphs of data, with a single Sesame instance.<p>

<To create a new respository<br>
<ul>
<li>Point your browser at: http://127.0.0.1:8080/openrdf-workbench/
<li>Click "New repository" (on the left)
<li>Set the "type" of respository to be "in memory store" (only. i.e., the first option.)
<li>Give the repository an id like "oscon09" and a human readable title/description
<li>Click "next"
<li>Say "yes" to persist an leave the sync delay at zero
<li>Click Create and you should see a "summary" screen
</ul><p>

<h3>Add some data to the repository</h3>

<ul>
<li>Download the <a href=movies.rdf.gz>movies.rdf.gz</a> file.
<li>uncompress the movies.rdf.gz file
<li>Click "add" (on the left, under the heading "modify")
<li>Select "data format" to RDF/XML (the default)
<li>Use the "browse..." button next to "RDF Data File" and navigate to the movies.rdf file
<li>Click "upload" - you should return to the "summary" screen (this may take several seconds)
<li>Click on "export" (on the left)
<li>Click on an actor and navigate the triples by clicking on various Subjects
</ul><p>

<h3>Run some SPARQL Queries</h3>

Click "query" (on the left)<p>

Enter the following query and click "execute":<br>
<pre>
PREFIX fb:&lt;http://rdf.freebase.com/ns/>
PREFIX rdf:&lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?costar ?movie WHERE {
  ?movie  fb:film.film.starring fb:en.john_travolta .
  ?movie fb:film.film.starring ?costar .
  filter (?costar != fb:en.john_travolta)
}
</pre>
<p>
Note: you can navigate the results by clicking on the links!<p>

When I turn on TV and start watching a random movie, I'm often frustrated - I can  name
one actor in the film - and I know what other films the costars have been in, but have no idea what I am watching!<p>

In this case I recognized Richard Dreyfuss....and the other guy was in Mystery Men.
This query tells me what movie I was watching.:<br>
<pre>
PREFIX fb:&lt;http://rdf.freebase.com/ns/>
PREFIX rdf:&lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?filmtitle ?releasedate ?actor WHERE {

  ?movie fb:type.object.name ?filmtitle .
  ?movie fb:film.film.initial_release_date ?releasedate .

  ?movie  fb:film.film.starring fb:en.richard_dreyfuss .

  ?movie fb:film.film.starring ?actor .
  fb:en.mystery_men fb:film.film.starring ?actor .
}
</pre>