About: http://webisa.webdatacommons.org/5409536

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	obviously the force of gravity acts upon every object, including the drill
http://www.w3.org/ns/prov#wasQuotedFrom	discoveryeducation.com