About: http://webisa.webdatacommons.org/393856633

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	As has already been said, char is considered a form of integer rather than a string, so fundamentally an addition operation is adding two numbers, rather than performing concatenation.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com