About: http://webisa.webdatacommons.org/215828432

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	The sphere may be made of several types of materials-rubber, plastic, or other compositions-preferably material with medium-hard density which retains its shape and dimensionsstubbornly, yielding only slightly to pressure or force.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com