| http://www.w3.org/ns/prov#value | - 40% reduced energy cost / revenue vs. other 5 Star hotels Cities are certainly holistic, and even towns, but perhaps they are too big??? ??? cities are a system of systems with dense population, which creates challenges and opportunities and even the potential for many new types of careers??? some statistics??? Demographic change: During the first decade of the 21 st century, for the first time in
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