Assertion: duchess's child | /r/HasProperty | son
Facets:
Source sentences:
text: The third child, a son named, Prince Louis, was born on April 23, 2018.
text: In season 12, Plankton and Karen finally have a child: a son named Chip Plankton II.
text: Elizabeth had two more children — sons Andrew and Edward — in 1960 and 1964, respectively.