About: http://webisa.webdatacommons.org/371507175

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 RH Linux, every pthread is mapping to a pid, which can be monitored in tools such as htop. but how can i get the pid of a thread? getpid() just return the pid of the main thread.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com