Assertion: celery's seed | /r/MadeOf | essential oils
Facets:
value: often
type: TEMPORAL
Source sentences:
text: The celery seed also contains essential oils 3-n-butylphthalide (3nB) and medically important compounds.
text: The seeds have an oily endosperm and often contain essential oils, containing aromatic compounds that are responsible for the flavour of commercially important umbelliferous seed such as anise, cumin and coriander.