Question: what is the function of a utility clamp
[{'answer': 'to hold rounded laboratory glassware'}, {'provenance': [{'wikipedia_id': '48458434', 'title': 'Utility clamp', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 457, 'bleu_score': 0.716984402445701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5559396018539000887}, 'section': 'Section::::Abstract.'}]}]