interface Sensor {
  in void activate();
  in void deactivate();
  out void deactivated();
  behaviour { 
    on activate: { deactivate; }
    on deactivate: {}
  }
}
 
component SensorComp {
  provides Sensor sensor1;
  requires Sensor sensor2;
  behaviour { 
    on sensor1.activate(): { sensor1.deactivate(); }
    on sensor1.activate(): { sensor2.deactivated(); }
  }
}