Assertion: valerian's seed | /r/HasProperty | required
Facets:
Source sentences:
text: so both male and female plants must be grown if seed is required).
text: Dioecious, male and female plants must be grown if seed is required.
text: so both male and female plants must be grown if seed is required).
text: Dioecious, male and female plants must be grown if seed is required.