Assertion: newton's niece | /r/CapableOf | serve as his hostess
Facets:
value: in social affairs
type: LOCATION
Source sentences:
text: His half-niece, Catherine Barton Conduitt, served as his hostess in social affairs at his house on Jermyn Street in London; he was her "very loving Uncle", according to his letter to her when she was recovering from smallpox.