About: http://webisa.webdatacommons.org/286026206

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	Teachers, however, usually lacked professional instructional training, and they were notoriously weak in subjects such as science and advanced math.
http://www.w3.org/ns/prov#wasQuotedFrom	xfamily.org