Question: the longest serving samma ruler in sindh was
[{'answer': 'Jam Nizamuddin II', 'provenance': [{'wikipedia_id': '3523469', 'title': 'Samma dynasty', 'start_paragraph_id': 32, 'start_character': 11, 'end_paragraph_id': 32, 'end_character': 28, 'bleu_score': 1.0, 'section': 'Section::::History.:Jam Sanjar.\n'}]}]