About: http://webisa.webdatacommons.org/83829654

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	If you use rel=nofollow attribute in img tag than you will miss the img alt tag from the GSEPR. nofollow is better for stop spamming from the comments or other links which are not related with <a> tag which may decrease your PageRank.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com