| http://www.w3.org/ns/prov#value | - I wish that had been clearly explained in the description.However, there is a different version of this year's book he is available *only* in stores--the cover is green with different images--which excludes much of the repeats" for those of us who have been enjoying Matthew's books for years and are not very interested in owning multiple books that have the same projects and ideas in them. (Some s
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