Question: what flag is black with a white cross
[{'answer': "Saint Piran 's Flag", 'provenance': [{'wikipedia_id': '347411', 'title': "Saint Piran's Flag", 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Clues to its origin.\n'}]}, {'provenance': [{'wikipedia_id': '347411', 'title': "Saint Piran's Flag", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 215, 'bleu_score': 0.6199901252383141, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11575349715294103787}, 'section': 'Section::::Abstract.'}]}]