I can't say how often I've seen it for China. We have seen it. Certainly we recognize that sometimes for a multitude of reasons people will tell us they don't have a dependant or they have only one dependant.
We have a case management branch at Citizenship and Immigration, which is working very closely on this, to understand the real reason they have done this, because most of the cases we're concerned about are refugees. Normally, if you indicate that you have dependants, they have to pass the medicals and security and so on before you yourself can be landed.
We have a mechanism in place to look at individual cases in which someone might not have declared an individual as their dependant. Although the act and regulations say these people can no longer be sponsored, we are dealing with them case by case and making assessments.