Question: which member of the cat family is largest in terms of length & weight
[{'answer': 'tiger', 'provenance': [{'wikipedia_id': '165456', 'title': 'Big cat', 'start_paragraph_id': 1, 'start_character': 112, 'end_paragraph_id': 1, 'end_character': 117, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]