Question: what type of rock is made of particles .05 cm
[{'answer': 'Sand', 'provenance': [{'wikipedia_id': '18994037', 'title': 'Sand', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 4, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18994037', 'title': 'Sand', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1306, 'bleu_score': 0.9712577346646771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5770517589886031033}, 'section': 'Section::::Composition.\n'}]}]