About: http://webisa.webdatacommons.org/314478258

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	On Ubuntu, /bin/sh is a symlink to dash, which does not support "test -a".
http://www.w3.org/ns/prov#wasQuotedFrom	github.com