About: http://webisa.webdatacommons.org/28384326

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	It will depend on the cricumstances (ages and habits of the children, the time of day, etc) But I would say anything more than a couple of hours is a problem.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com