[{"pk1": "b", "pk2": "a", "pk3": "r", "content": "b-a-r"}, {"pk1": "b", "pk2": "b", "pk3": "r", "content": "b-b-r"}, {"pk1": "b", "pk2": "c", "pk3": "r", "content": "b-c-r"}, {"pk1": "b", "pk2": "d", "pk3": "r", "content": "b-d-r"}, {"pk1": "b", "pk2": "e", "pk3": "r", "content": "b-e-r"}, {"pk1": "b", "pk2": "f", "pk3": "r", "content": "b-f-r"}, {"pk1": "b", "pk2": "g", "pk3": "r", "content": "b-g-r"}, {"pk1": "b", "pk2": "h", "pk3": "r", "content": "b-h-r"}, {"pk1": "b", "pk2": "i", "pk3": "r", "content": "b-i-r"}, {"pk1": "b", "pk2": "j", "pk3": "r", "content": "b-j-r"}, {"pk1": "b", "pk2": "k", "pk3": "r", "content": "b-k-r"}, {"pk1": "b", "pk2": "l", "pk3": "r", "content": "b-l-r"}]