About: http://webisa.webdatacommons.org/189499504

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	'F' is a String and the query is expecting an smallint-value, because I guess, that char is mapped to some integer values.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com