a vegetable has a nonmetallic dullness
dullness is not uninterestingness. dullness is unfeelingness. dullness is not unfeelingness. solanaceous_vegetable is not vegetable. dullness is not visual_property. pepper is not solanaceous_vegetable. raw_vegetable is not vegetable. flatness is dullness. tomato is not solanaceous_vegetable. flatness is not dullness.