Question: which organ of the united nations has suspended its operations since 1994
[{'answer': 'United Nations Trusteeship Council', 'provenance': [{'wikipedia_id': '31959', 'title': 'United Nations Trusteeship Council', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 34, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]