| http://www.w3.org/ns/prov#value | - This arrangement can be especially advantageous in situations where an adult must hold the child on their lap or in close quarters for extended periods of time, such as on a plane, automobile car seat,train, boat, in a restaurant, and the like.DESCRIPTION OF THE PRIOR ARTMany patents have been directed toward portable activity centers having a variety of educational/amusement devices or toys for r
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