[{"bbox": [115, 142, 471, 181], "category": "Caption", "text": "Appendix 2: Problem tree"}, {"bbox": [128, 250, 1492, 935], "category": "Picture"}, {"bbox": [1494, 1150, 1616, 1174], "category": "Page-footer", "text": "Page 23 of 25"}]