{
    "tf1_30_T4_ss2_md.jpeg": "3 times 3 sub-blocks with 3 objects: a blue oval at the top-left, a blue oval at the top, a blue 12-sided star at the center.",
    "tf1_30_T3_ss2_md.jpeg": "3 times 3 sub-blocks with 3 objects: a red oval at the top-left, a red oval at the top, a red hollow circle at the bottom.",
    "tf1_30_T1_ss2_md.jpeg": "3 times 3 sub-blocks with 3 objects: a red oval at the top-left, a red oval at the top, a red 12-sided star at the center.",
    "tf1_30_T2_ss2_md.jpeg": "3 times 3 sub-blocks with 3 objects: a red 12-sided star at the center, a red oval at the bottom-right, a red oval at the right-bottom."
}