I believe the "topic to" is what's often known as a 'weasel clause'. You could basically place just about anything you need there...a good deal of people will contain anything like "matter to favorable funding" or "subject matter to business enterprise partner's approval" to offer by themselves a fairly easy http://molbiol.ru/forums/index.php?showtopic=928457&st=950&p=6086991#entry6086991