Exam Question: Observations about the Candidate Classes
				WeatherMap     is a DigitizedMap        is derived from 1...* DataSummary WeatherStation   has a set of MeteorologicalData MeteorologicalData DataSummary     is derived from MeteorologicalData DigitizedMap Can Meteorological Data be an attribute of WeatherStation? Can DataSummary be combined with WeatherMap?
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