Assertion: legume's use | /r/HasProperty | graham
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Source sentences:
text: Agricultural & Economic Importance of Legumes Legumes have demonstrated agricultural importance for thousands of years, beginning with the domestication of lentils (Lens esculenta) in Iran dating to 9,500 to 8,000 years ago, their use as a food source during the prehistory of North and South America (beans, more than 3,000 years ago), and their use by the Roman Empire as a food source and for soil improvement (Graham and Vance, 2003).