Question: what is used in measuring the direction of the wind
[{'answer': 'Weather vane', 'provenance': [{'wikipedia_id': '14490084', 'title': 'Outline of meteorology', 'start_paragraph_id': 65, 'start_character': 12, 'end_paragraph_id': 65, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Instruments and equipment of meteorology.\n'}]}, {'answer': 'Windsock', 'provenance': [{'wikipedia_id': '14490084', 'title': 'Outline of meteorology', 'start_paragraph_id': 66, 'start_character': 12, 'end_paragraph_id': 66, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Instruments and equipment of meteorology.\n'}]}, {'answer': 'Wind profiler', 'provenance': [{'wikipedia_id': '14490084', 'title': 'Outline of meteorology', 'start_paragraph_id': 67, 'start_character': 12, 'end_paragraph_id': 67, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Instruments and equipment of meteorology.\n'}]}]