if it is raining, then the weather will be rainy
rain is bad_weather. if_rain_falling_then is not raining. rain is weather. raining is state_of_weather. rainy is not particular_kind_of_weather. rainy is weather. raining is one_type_of_weather. if_rain_falling_then is raining. rainy is not weather. rainy is particular_kind_of_weather.