Question: which instrument is used to measure the weight of the body
[{'answer': 'digital bathroom scale', 'provenance': [{'wikipedia_id': '964428', 'title': 'Weighing scale', 'start_paragraph_id': 49, 'start_character': 2, 'end_paragraph_id': 49, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Force-measuring (weight) scales.:Digital scales.:Digital bathroom scale.\n'}]}]