title: Protege Owl: restrictions on individuals
body: <p>I have a little problem with my ontology!
  We work on an ontology which manage a smart home. So we have objects like Tables, Doors, Lamps, .... A object that is smart has:</p>
  
  <ul>
  <li>an actuator which run an action like open a door for example</li>
  <li>a sensor which gets informations about temperature for example</li>
  </ul>
  
  <p>I have ObjectProperties for ex: hasActuator --> Door hasActuator DoorController</p>
  
  <p>So now, the problem is the individuals! I would like that an object (Door_1 for example) has an actuator DoorController_1 but an other Door (Door_2) can't use the actuator DoorController_1 because he's already use !</p>
  
  <p>How can I treat that? Which restrictions?</p>
  
  <p>If I put hasActuator functional, it's only to say that a object can have only one actuator, but it's not that I want!</p>