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It is also often used when batters are having difficulty getting a hit off of a difficult pitcher , or when they have a better opportunity of getting on base because of the slap bunt than a hit , perhaps because of the player 's running speed .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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