Consider a set of news articles that contains 100 mentions of organizations. From this source, an extractor extracts 75 entities, 50 of which are correct. What are the Precision (P) and Recall (R) values of this extractor?
O P = 0.75, R = 0.50
O P = 0.67, R = 1.50
O P=0.67, R = 0.50
O P = 0.50, R = 0.67
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