Assertion: roselle's calyx | /r/HasProperty | useful
Facets:
value: for making jams
type: PURPOSE
Source sentences:
text: The calyx is rich in citric acid and pectin and so is useful for making jams, jellies etc.
text: The calyx is rich in citric acid and pectin and so is useful for making jams, jellies etc.
text: The calyx is rich in citric acid and pectin and is useful for making jams, jellies.