Assertion: broccoli's vitamin a | /r/HasProperty | better source of vitamin k
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Source sentences:
text: By contrast, broccoli sprouts contain about half as much vitamin A as mature broccoli and a third of the vitamin C. Broccoli sprouts are a better source of vitamin K, with nearly 38 micrograms per half-cup serving, well exceeding mature broccoli, which contains 0.4 micrograms per half-cup.