Question: difference between fire hd 8 6th and 7th generation
[{'answer': 'the price', 'provenance': [{'wikipedia_id': '36938820', 'title': 'Fire HD', 'start_paragraph_id': 7, 'start_character': 133, 'end_paragraph_id': 7, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'the gyroscope removal', 'provenance': [{'wikipedia_id': '36938820', 'title': 'Fire HD', 'start_paragraph_id': 7, 'start_character': 144, 'end_paragraph_id': 7, 'end_character': 165, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'the better graphics chip', 'provenance': [{'wikipedia_id': '36938820', 'title': 'Fire HD', 'start_paragraph_id': 7, 'start_character': 214, 'end_paragraph_id': 7, 'end_character': 238, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'the increase of maximum SD card expansion'}]