Question: where does most of the world's lithium come from
[{'answer': 'South America', 'provenance': [{'wikipedia_id': '17561', 'title': 'Lithium', 'start_paragraph_id': 52, 'start_character': 57, 'end_paragraph_id': 52, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '17561', 'title': 'Lithium', 'start_paragraph_id': 52, 'start_character': 0, 'end_paragraph_id': 52, 'end_character': 283, 'bleu_score': 0.9569637990759251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13740015867517270447}, 'section': 'Section::::Production.\n'}]}]