Question: who has designed the symbol of indian currency
[{'answer': 'Udaya Kumar', 'provenance': [{'wikipedia_id': '28043791', 'title': 'Indian rupee sign', 'start_paragraph_id': 1, 'start_character': 131, 'end_paragraph_id': 1, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28043791', 'title': 'Indian rupee sign', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 452, 'bleu_score': 0.8067211373483111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7702859576908494347}, 'section': 'Section::::Abstract.'}]}]