| http://www.w3.org/ns/prov#value | - Many times government email systems are hit hard with inquiries or saturated with spam dictionary attacks and the IT departments do not have experience solving those problems, so they go days or weeks without the ability to use their email, so they are forced to use Yahoo, Gmail or other similar services that provide nearly 24x7x365 reliable email service at no cost to tax-payers.
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