Question: what was the first purpose of the declaration of independence
[{'answer': 'announcing independence'}, {'provenance': [{'wikipedia_id': '31874', 'title': 'United States Declaration of Independence', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 645, 'bleu_score': 0.8461955352121461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12232128938806745461}, 'section': 'Section::::Abstract.'}]}]