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+Creative Commons Attribution 4.0 International License (CC-BY 4.0)
+
+Copyright (c) 2026 Haonan Li
+
+GeoSym-Bench — A controlled evaluation benchmark for quantitative chart
+reasoning comprising 460 clean-rendered function graph images across eight
+mathematical function families with complete ground-truth annotations.
+
+You are free to:
+
+  Share — copy and redistribute the material in any medium or format for
+  any purpose, even commercially.
+
+  Adapt — remix, transform, and build upon the material for any purpose,
+  even commercially.
+
+Under the following terms:
+
+  Attribution — You must give appropriate credit, provide a link to the
+  license, and indicate if changes were made. You must cite the following
+  paper in any publication or derivative work that uses this dataset:
+
+    Wang, Y., Zhang, Q., Li, H., Sun, T., & Yu, S. S. (2026).
+    GeoSym: Structured Evidence Fusion for Reliable Quantitative
+    Chart Reasoning.
+    https://github.com/lihaonan0716/GeoSym
+
+  No additional restrictions — You may not apply legal terms or
+  technological measures that legally restrict others from doing anything
+  the license permits.
+
+Full license text: https://creativecommons.org/licenses/by/4.0/legalcode