Right, okay, what we're saying here is that the mum and the dad are normal people, they don't have any problems, but they have got each of them have got abnormal gene and they're going to have a family, the first baby that they have gets two normal genes, one from each parent, you only get one gene from each parent, fuses so that makes two genes so the baby has two genes, right, the first baby gets two normal genes, right and that baby is normal, which is very clear  right, so here we have written  this baby is not P K U affected and is normal and doesn't actually carry the gene any more, does that make sense to you?