What is the load bearing capacity when the name is Camelus Dromedarius
{'header': ['Common Name', 'Scientific Name', 'Life Span', 'Adult Weight', 'Height at Shoulder', 'Length of Fur', 'Load Bearing Capacity'], 'page_title': '', 'page_id': '', 'types': ['text', 'text', 'text', 'text', 'text', 'text', 'text'], 'id': '1-1427868-1', 'section_title': '', 'caption': '', 'rows': [['Dromedary Camel', 'Camelus dromedarius', '40-50 years', '450–540kg (1000–1200lb)', '180–210cm (6–7ft)', '7.5–10cm (3–4in)', '150-230kg (350-500lb)'], ['Bactrian Camel', 'Camelus bactrianus', '40-50 years', '450–680kg (1000–1500lb)', '180–210cm (6–7ft)', '25cm (10in)', '150-270kg (350-600lb)'], ['Llama', 'Lama glama', '20-30 years', '130–200kg (280–450lb)', '90-120cm (3-4ft)', '8–25cm (3–10in)', '30-50kg (60-100lb)'], ['Vicuna', 'Vicugna vicugna', '20-25 years', '35-65kg (80-140lb)', '70–90cm (2½–3ft)', '1–4cm (>1-2in)', '10-15kg (20-30lb)'], ['Alpaca', 'Vicugna pacos', '15-20 years', '46-84kg (100-185lb)', '90–120cm (3–4ft)', '20-40cm (8–16in)', '10-20kg (20-50lb)'], ['Guanaco', 'Lama guanicoe', '20-25 years', '70–90kg (150-200lb)', '105–120cm (3½–4ft)', '5cm (2in)', '15-20kg (30-50lb)']], 'name': 'table_1427868_1'}