To view the embedded data encoded in RDFa, hover over the red-dotted areas. You can also view the data externally in the Web Data Inspector, or Graphite Browser or other tools.

In this 4 star example, we used the Meteo vocabulary to represent the temperature forecasts. Each forecast has a URI (for example, 'forecast for Monday, 15 November 2010'), which can be used in another context.

If you view the source, the data looks like a hierarchical structure, but this is an illusion. Really it is just expressing a set of individual facts about things; "#Galway" is "a Place", "#Galway" has a forecast "#forecast20101113", "#forecast20101113" is a prediction for "2010-11-13T00:00:00Z" and so forth. You can change the order of these facts without altering their meaning.