text: [{"text_idx": "#000003", "text": "Buchner ring no 1 \u2013 flask neck 35 mm"}, {"text_idx": "#000004", "text": "Buchner ring no 2 \u2013 flask neck 45 mm"}, {"text_idx": "#000005", "text": "Buchner ring no 3 \u2013 flask neck 60 mm"}]