Assertion: sunflower's seed | /r/CapableOf | develop hard coating
Facets:
Source sentences:
text: As the heads ripen, they will drop their petals; the back of the head will turn from green to brown, and the seeds will develop a hard coating.
text: As the heads ripen, they will drop their petals; the back of the head will turn from green to brown, and the seeds will develop a hard coating.