Question: who plays the dark elf in thor 2
[{'answer': 'Adewale Akinnuoye - Agbaje', 'provenance': [{'wikipedia_id': '32267545', 'title': 'Thor: The Dark World', 'start_paragraph_id': 46, 'start_character': 383, 'end_paragraph_id': 46, 'end_character': 410, 'bleu_score': 1.0, 'section': 'Section::::Production.:Post-production.\n'}]}, {'provenance': [{'wikipedia_id': '32267545', 'title': 'Thor: The Dark World', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 1647, 'bleu_score': 0.9932087303081821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4818025655053700447}, 'section': 'Section::::Cast.\n'}]}]