| http://www.w3.org/ns/prov#value | - Illustratively, the metadata files further include data indicative of (i) weights assigned to the advertisement, and hence the advertisement content, (ii) the type of advertisement, and hence the advertisement content, i.e. whether the advertisement is committed or flexible, (iii) when the advertisement, and hence when the advertisement content is to be displayed, (iv) target information for the a
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