fasano people could look at fit different formulations of labeling and you would learn what they would take away from different formulations. >> the reason i ask the question, don't know if you can answer it at this point. lot of people who approached me don't make the argument that there is the scientific difference but just -- just that they should know. >> again, maybe one could develop different formulations and do experimental studies surrounding them. the types of studies that are typically done over the internet with panels that are set up, large numbers. to see what people would take away from a different mach labels. >> i know you say the consultation process is voluntary, but what does that mean in practice? if it is voluntary why would companies choose to use it? do you have an estimate how many manufacturers choose not to use it? what are the pros and cons? >> for people intending to commercialize products we think those people to come to us for several reasons. there is the basic statutory requirement on company's to market food that is safe. another is we learn a great de