Assertion: guinea fowl's egg | /r/HasProperty | popular delicacy
Facets:
value: in the seventeenth century
type: TEMPORAL
Source sentences:
text: The eggs are not a staple food source, but are a popular delicacy.
text: Egg scrambled with acidic fruit juices were popular in France in the seventeenth century; this may have been the origin of lemon curd.