Question: who made the machines in horizon zero dawn
[{'answer': 'GAIA', 'provenance': [{'wikipedia_id': '46991545', 'title': 'Horizon Zero Dawn', 'start_paragraph_id': 12, 'start_character': 506, 'end_paragraph_id': 12, 'end_character': 510, 'bleu_score': 1.0, 'section': 'Section::::Synopsis.:Plot.\n'}]}, {'provenance': [{'wikipedia_id': '46991545', 'title': 'Horizon Zero Dawn', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 1518, 'bleu_score': 0.64524634689086, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1654503806502447390}, 'section': 'Section::::Synopsis.:Plot.\n'}]}]