With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: The weather in Southern California is such that the temperature usually stays above 54 degrees;°F in winter, thus, sun-loving crops like pistachios, kiwifruit, avocadoes, strawberries, and tomatoes are staple crops of the region, the last often dried in the sun and a feature of salads and sandwiches.
text_B: Do persons working outdoors in Southern California in Mid February during the day need to wear warm wool coats?
NO.