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diff --git a/train/stackexchange/stackexchange_0005-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/stackexchange/stackexchange_0005-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..6b72d8f32b87f4fef18beab490921077e5df9a8b
--- /dev/null
+++ b/train/stackexchange/stackexchange_0005-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0005-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/stackexchange/stackexchange_0005-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..0da36e0e4ddb2c235e3bba158be397b62c2999b1
--- /dev/null
+++ b/train/stackexchange/stackexchange_0005-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 694774655,
+  "num_truncated_tokens": 694625174
+}
\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0007-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/stackexchange/stackexchange_0007-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..58bd84c85f41c2e3e4de2c048d8dd633d4847ddf
--- /dev/null
+++ b/train/stackexchange/stackexchange_0007-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0007-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/stackexchange/stackexchange_0007-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..bf08bca845f02fde7bc539896fe63fd471bcfb95
--- /dev/null
+++ b/train/stackexchange/stackexchange_0007-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 727493742,
+  "num_truncated_tokens": 727326854
+}
\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0013-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/stackexchange/stackexchange_0013-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..0b018849164ab6c4499502bde2e427a2e064de4c
--- /dev/null
+++ b/train/stackexchange/stackexchange_0013-tokenized-chunked-1024-512-128-backfill-nodups/index.json
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\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0013-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/stackexchange/stackexchange_0013-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..184e44ca3bad1a0da98bca39f0581bbab7fb3d19
--- /dev/null
+++ b/train/stackexchange/stackexchange_0013-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
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+  "num_truncated_tokens": 768748740
+}
\ No newline at end of file
diff --git a/train/stackexchange/stackexchange_0015-tokenized-chunked-1024-512-128-backfill-nodups/index.json b/train/stackexchange/stackexchange_0015-tokenized-chunked-1024-512-128-backfill-nodups/index.json
new file mode 100644
index 0000000000000000000000000000000000000000..759a82913c597edf009338acdf9b79508cbee836
--- /dev/null
+++ b/train/stackexchange/stackexchange_0015-tokenized-chunked-1024-512-128-backfill-nodups/index.json
@@ -0,0 +1 @@
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diff --git a/train/stackexchange/stackexchange_0015-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json b/train/stackexchange/stackexchange_0015-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
new file mode 100644
index 0000000000000000000000000000000000000000..49dd865e6f5833f9d0b62aa72fbc193f5a1962bd
--- /dev/null
+++ b/train/stackexchange/stackexchange_0015-tokenized-chunked-1024-512-128-backfill-nodups/num_tokens.json
@@ -0,0 +1,4 @@
+{
+  "num_tokens": 779383490,
+  "num_truncated_tokens": 779162378
+}
\ No newline at end of file