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Weather systems such as weather radar ( typically Arinc " 708 on commercial aircraft ) and lightning detectors are important for aircraft flying at night or in instrument meteorological conditions , where it is not possible for pilots to see the weather ahead .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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