diff --git a/.gitattributes b/.gitattributes
index fad200ec9ba29282d98dfb08b0b3bf6570854e0d..e0cebe9b19899c14f73b475fc0cc1699a5fd08c8 100644
--- a/.gitattributes
+++ b/.gitattributes
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 algebraic_stack_train_0001/shard.00060.mds.zstd filter=lfs diff=lfs merge=lfs -text
 algebraic_stack_train_0001/shard.00061.mds.zstd filter=lfs diff=lfs merge=lfs -text
 algebraic_stack_train_0001/shard.00062.mds.zstd filter=lfs diff=lfs merge=lfs -text
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diff --git a/algebraic_stack_train_0002/index.json b/algebraic_stack_train_0002/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..d19f958665303285a8686499e274203f25c80e85
--- /dev/null
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