320745
Infragravity waves are surface gravity wave s with frequencies lower than the wind wave s – consisting of both wind sea and swell – so corresponding with the part of the wave spectrum lower than the frequencies directly generated by forcing through the wind .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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