That's hard to say; I can't give you a figure. But really, if it isn't marketable as a product, it's probably marketable as know-how. Every project has to have an outcome that somebody will benefit from. In construction there really isn't a large idea or large marketing, but it's the know-how and the transfer of know-how in the industry that makes the difference.
So for every project you have to have a guideline or standard that results in a new way of doing stuff. That's how we work. It is not in fundamentals for fundamental research's sake.