Question: what treaty was signed at the end of ww1
[{'answer': 'Treaty of Versailles', 'provenance': [{'wikipedia_id': '30030', 'title': 'Treaty of Versailles', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30030', 'title': 'Treaty of Versailles', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 673, 'bleu_score': 0.8833265855047071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7020205935527960595}, 'section': 'Section::::Abstract.'}]}]