About: http://webisa.webdatacommons.org/182041387

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	Moreover, the pair of elements which show the smallest difference between their atomic weights is beryllium and calcium; there is a somewhat greater difference between lithium and potassium.
http://www.w3.org/ns/prov#wasQuotedFrom	lemoyne.edu