Question: what type of plate boundary is the san andrea's fault
[{'answer': 'Transform fault', 'provenance': [{'wikipedia_id': '64460', 'title': 'San Andreas Fault', 'start_paragraph_id': 1, 'start_character': 39, 'end_paragraph_id': 1, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]