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isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
n5stackoverflow.
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xsdhhttp://www.w3.org/2001/XMLSchema#
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prov:value
For C and especially C++ - if you have a real-world project, I would recommend staying as close to a canonical parser implementation as possible.
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n5:com
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