| http://www.w3.org/ns/prov#value | - In advanced industrial societies, ???infancy??? so defined might, in the case of such professions as medicine, the law, or engineering, extend into the late twenties, when, with the award of a post-graduate degree, the individual joins the ranks of mature, independent and productive members of society. (Of course, pre-doctoral students are usually productive as well, as they function as researcher
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