b6ad3df6e9ee3f9c8ed0d9e0f99fa20e78567279aaa36c9ca4b36f32ce613e3b  tileSG-018-042_1-4.tif
b69927dcb4b6e862747401ce04ec226a057ce578070bbdb0f6f3d4cbc39eea32  tileSG-018-042_1-3.tif