About: http://webisa.webdatacommons.org/142310172

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	A vampire number is a number v = x ?? y such that x and y are not both divisible by 10 and the digits of v consist of the digits of x and the digits of y.
http://www.w3.org/ns/prov#wasQuotedFrom	programmingpraxis.com