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<http://webisa.webdatacommons.org/55839993>	<http://www.w3.org/ns/prov#value>	"But his letters to such friends as Samuel Coleridge and Robert Southey show some reserve about the delicate subject of his sister's mental health." .
<http://webisa.webdatacommons.org/prov/273069949>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/55839993> .
<http://webisa.webdatacommons.org/55839993>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<amazon.com> .