Question: when did lil wayne drop his last album
[{'answer': 'September 28 , 2018', 'provenance': [{'wikipedia_id': '10391001', 'title': 'Lil Wayne albums discography', 'start_paragraph_id': 1, 'start_character': 1497, 'end_paragraph_id': 1, 'end_character': 1516, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]