About: http://webisa.webdatacommons.org/261127161

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	How is it that PHP internally makes those type conversions when using Array keys? i.e., How does it determine the key is a valid decimal integer as per the documentation?
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com