Question: how often do public companies file 10-ks on a yearly basis
[{'answer': 'annual', 'provenance': [{'wikipedia_id': '1536355', 'title': 'Form 10-K', 'start_paragraph_id': 1, 'start_character': 18, 'end_paragraph_id': 1, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1536355', 'title': 'Form 10-K', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 655, 'bleu_score': 0.8432920547089621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3203653655292011842}, 'section': 'Section::::Abstract.'}]}]