Question: the meridian opposite of earth’s prime meridian (0 ° longitude) is called
[{'answer': 'International Date Line', 'provenance': [{'wikipedia_id': '50225', 'title': 'Prime meridian', 'start_paragraph_id': 20, 'start_character': 381, 'end_paragraph_id': 20, 'end_character': 404, 'bleu_score': 1.0, 'section': 'Section::::International prime meridian.:IERS Reference Meridian.\n'}]}]