| http://www.w3.org/ns/prov#value | - For a few hours each school day, children use them to burn off steam, but the valuable land gets no activity after school and on weekends, even in neighborhoods desperate for park space. (In the worst cases, they are used as teacher parking lots.) In contrast, school systems and park departments in cities including Boston, Denver, Houston??? New York, and Phoenix have cooperated in redesigning and
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