Assertion: rose mallow's flower | /r/HasProperty | double
Facets:
Source sentences:
text: Flowers are double and are 4 to 6 inches in diameter; they open white or pink, and change to deep red by evening.
text: Flowers can be double or single and are 4–6 in (10–15 cm) in diameter; they open white or pink, and change to deep red by evening.