Assertion: cucumber's seed | /r/HasProperty | flattened
Facets:
Source sentences:
text: The seeds are flattened and some, such as those produced by the Javan cucumber (Alsomitra macrocarpa), have beautiful wings to aid in dispersal.
text: Each bur-like fruit contains a single large seed that is brown and flattened; this seed is tapered at one end more than the other and it has a rough surface.