Question: the uppermost epoch of the neogene period is
[{'answer': 'Pliocene', 'provenance': [{'wikipedia_id': '21477', 'title': 'Neogene', 'start_paragraph_id': 1, 'start_character': 317, 'end_paragraph_id': 1, 'end_character': 325, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21477', 'title': 'Neogene', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 44, 'bleu_score': 0.7598356856515921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6204831491865435411}, 'section': 'Section::::Divisions.\n'}]}]