About: http://webisa.webdatacommons.org/394106093

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	In the other answers, the wall was assumed to move slowly not because there was an opposing force but because the wall was infinitely heavy.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com