About: http://webisa.webdatacommons.org/15124236

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	Thus, the opcode field can quickly and readily identify whether a packet is a request or a response and whether the response is an ordinary response or an error response.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com