cloudy is a mean of sunny
sunny is one_type_of_weather. partly_cloudy_location is cloudy_area. partly_cloudy_location is not cloudy_area. sunny_days is not brighter_than_cloudy_days. overcast_location is cloudy_area. mostly_cloud_covered_area is cloudy_area. cloudy_area is natural_thing. sunny is not one_type_of_weather. sunny_days is brighter_than_cloudy_days. rainy_area is cloudy_area.