# AGReasoningInverseOf.java

`package com.franz.agbase.examples;
import com.franz.agbase.*;
public class AGReasoningInverseOf {
/**
* Demonstrates reasoning involving owl:inverseOf
*
* @param args unused
* @throws AllegroGraphException
*/
public static void main(String[] args) throws AllegroGraphException {
// Connect to server, which must already be running.
AllegroGraphConnection ags = new AllegroGraphConnection();
try {
ags.enable();
} catch (Exception e) {
throw new AllegroGraphException("Server connection problem", e);
}
// Create a fresh triple-store for this example.
AllegroGraph ts = ags.renew("inverseof", AGPaths.TRIPLE_STORES);
// Register your namespaces
ts.registerNamespace("ex","http://example.org/");
// Add some triples to the store
ts.addStatement("!ex:a","!ex:owned-by","!ex:b");
ts.addStatement("!ex:c","!ex:owns","!ex:d");
ts.addStatement("!ex:jans","!ex:owns","!ex:birra");
ts.addStatement("!ex:owned-by","!owl:inverseOf","!ex:owns");
// Retrieve some triples without reasoning
TriplesIterator cc = ts.getStatements(false, null, null, null);
System.out.println("Ground triples in the store:");
AGUtils.showTriples(cc);
// Now demonstrate reasoning
TriplesIterator cc2 = ts.getStatements(true,null,"!ex:owned-by",null);
System.out.println("owned-by triples in the store and inferred:");
AGUtils.showTriples(cc2);
// Close the triple store and disconnect from the server.
ts.closeTripleStore();
ags.disable();
}
}
`

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