http://www.w3.org/ns/prov#value | - Authors who came up with such a brilliant idea should have quoted a lot, despite of visual simplicity.- The categorization is another potential threat, because not all timelines are the same, and the prices for them vary greatly - the same goes for maps, comparisons, and other genres - some of them take weeks to do, others are very easy.- The other important point with regards to the pricing is th
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