About: http://webisa.webdatacommons.org/451287669

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	One example is a system call like DNS lookup, which cannot be worked around with non-blocking I/O methods.
http://www.w3.org/ns/prov#wasQuotedFrom	infoq.com