Assertion: broccoli's amount | /r/HasProperty | about 4 grams
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Source sentences:
text: Broccoli is packed full of phytochemicals and antioxidants, including more vitamin C than an orange, more than 200 mg of potassium in just a half-cup serving, an unusually strong combination of vitamin A and vitamin K, and even a decent amount of protein (about 4 grams!).