Question: who is the last king of gupta dynasty
[{'answer': 'Skandagupta', 'provenance': [{'wikipedia_id': '227918', 'title': 'Gupta Empire', 'start_paragraph_id': 32, 'start_character': 399, 'end_paragraph_id': 32, 'end_character': 410, 'bleu_score': 1.0, 'section': 'Section::::History.:Kumaragupta I.\n'}]}, {'provenance': [{'wikipedia_id': '227918', 'title': 'Gupta Empire', 'start_paragraph_id': 39, 'start_character': 0, 'end_paragraph_id': 39, 'end_character': 287, 'bleu_score': 0.523748153391947, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4424533613787460734}, 'section': 'Section::::History.:Decline of the empire.\n'}]}]