View source for SemanticWebServer

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A [[SemanticWebServer]] is a [[WebServer]] which provides knowledge-based
services.   In particular:

* It has an HTTP (or HTTP-like) URI
* It has a [[KnowledgeBase]]
* It responds to HEAD and GET in a helpful manner
* The response to GET should provide a serialization
    (representation) of a basic default view (query) of the
    knowledge base, saying:
* the basic facts of interest to readers
* where to find a [[DeltaView]]
* how to query the KB (use [[DeltaView]] to query history)
* how to add to the KB (use [[DeltaView]] to delete)
* what other services might be available