<http://webisa.webdatacommons.org/77253805> <http://www.w3.org/ns/prov#wasQuotedFrom> <slideshare.net> . <http://webisa.webdatacommons.org/prov/454891409> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/77253805> . <http://webisa.webdatacommons.org/77253805> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/77253805> <http://www.w3.org/ns/prov#value> "A variety of surfaces and materials should be provided including sand and dirt, pavement, and open grassy areas where toddlers can use an abundance of play objects." . <http://webisa.webdatacommons.org/prov/11539789> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/77253805> . <http://webisa.webdatacommons.org/prov/1689710> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/77253805> . <http://webisa.webdatacommons.org/prov/461439110> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/77253805> .