Question: when was the triple alliance and triple entente formed
[{'answer': '31 August 1907', 'provenance': [{'wikipedia_id': '290941', 'title': 'Triple Entente', 'start_paragraph_id': 1, 'start_character': 269, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '290941', 'title': 'Triple Entente', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 471, 'bleu_score': 0.885357472935788, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 377230335201684954}, 'section': 'Section::::Abstract.'}]}]