public Set<String> addContent(BNetwork network){
  if (!paused) {
    curState.addToState(network);
    return update();
  }
 else {
    log.info("system is paused, ignoring content " + network);
    return Collections.emptySet();
  }
}

public Set < String > addContent ( BNetwork network ) { if ( ! paused ) { curState . addToState ( network ) ; return update ( ) ; } else { log . info ( "system is paused, ignoring content " + network ) ; return Collections . emptySet ( ) ; } }
merges the bayesian network included as argument into the current one , and updates the dialogue state .
