Assertion: black oil sunflower seed | /r/HasAspect | three categories
Facets:
Source sentences:
text: Non-oil sunflower seeds are divided into three categories: food-grade seeds made up of the highest-quality seeds, including the largest and cleanest seeds; ingredient seeds that are still food-grade quality but do not have the properties of the food-grade category; the smaller, lower-quality seeds for bird feed.