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It’s on a comparative benchmarking basis. That is somewhat difficult to do with patents and trade secrets and the like - because people don’t expose or disclose what they’ve paid or bought if there’s an assignment, or the licence fee if there’s a licence. One methodology is as I said is the market approach, there is the royalty or the punitive royalty income stream approach where you turn around and say “if I was a patentee, how much would I charge you as a prospective licensee, and how much would you be prepared to pay to use my rights?” You could base it on the cost approach - how much was invested to get that technology?