About: http://webisa.webdatacommons.org/425983873

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	There is not much marsh on most maps, so the yields must be really good to have some sort of impact.
http://www.w3.org/ns/prov#wasQuotedFrom	civfanatics.com