Assertion: sour orange | /r/HasProperty | c. aurantium
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Source sentences:
text: While the sour orange (C. aurantium) was brought westward from China and India by local traders, who may have introduced it to Sicily and Spain, the 'Jaffa' orange was developed from the sweet orange (C. sinensis) which was brought from China to the Mediterranean region by Portuguese explorer Vasco da Gama in 1498.