http://www.w3.org/ns/prov#value | - my teacher once made an observation that a lot of my fellow students wore watches and other kinds of jewelry. he told me that back in his days, tvs had supply rails in the 10s of kvs. all that metal junk dangling would almost surely get you a nasty shock on occasions when you had to work on live electrical equipment (old crts in this case). iirc rail tracks on the london underground rail are _only
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