Question: which terminal does the train stop at gatwick
[{'answer': 'South', 'provenance': [{'wikipedia_id': '1063892', 'title': 'Gatwick Airport railway station', 'start_paragraph_id': 1, 'start_character': 198, 'end_paragraph_id': 1, 'end_character': 203, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]