About: http://webisa.webdatacommons.org/246766753

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	The child learns how to produce such or such a sound just as it learns how to turn the head or the eyes, i. e., by constant efforts.
http://www.w3.org/ns/prov#wasQuotedFrom	wikisource.org