About: http://webisa.webdatacommons.org/150460710

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	I am going to suggest that the correct answer is 4 and that the reason why is that there are two mistakes in the problem. x=4 is the correct answer to the question:
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com