I think almost none of the LOD cloud is metadata. It's all information like the population of Berlin, or the proteins which connect to some receptor. I've seen

I think almost none of the LOD cloud is metadata. It's all information like the population of Berlin, or the proteins which connect to some receptor. I've seen some apps which are using RDF mostly for metadata, but in the life sciences world, we use it for the nitty gritty data.