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The irony of the above-average summer rainfall was not lost on High Plains wheat producers , who only three months ago were caught in a drought so severe that old-timers likened conditions to the " Dust Bowl " days of the 1930s .
 High Plains, Dust Bowl
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 High Plains, Dust Bowl