diff --git a/.gitignore b/.gitignore
index dc6390d..5587343 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,4 +15,5 @@ CMakeFiles/
 compile_commands.json
 venv/
 __pycache__/
-mg[0-9]/
\ No newline at end of file
+mg[0-9]/
+nosync-*
diff --git a/data/metall_graph/csv/intsasstrings.csv b/data/metall_graph/csv/intsasstrings.csv
new file mode 100644
index 0000000..1711be4
--- /dev/null
+++ b/data/metall_graph/csv/intsasstrings.csv
@@ -0,0 +1,5 @@
+u,v,time_seen,valid
+"A","B","1",true
+"B","C","2",true
+"C","D","9",false
+"D","A","12",false
diff --git a/data/metall_graph/csv/regex.csv b/data/metall_graph/csv/regex.csv
new file mode 100644
index 0000000..cc4617e
--- /dev/null
+++ b/data/metall_graph/csv/regex.csv
@@ -0,0 +1,10 @@
+s,t,times_seen,relevant
+A`T1',B`T1',1,true
+A`T1',B`T2',2,true
+A`T1',A`T2',3,false
+A`T1',C`T3',4,false
+B`T1',B`T2',5,true
+B`T3',C`T1',6,true
+B`T2',C`T2',7,false
+B`T1',A`T1',8,true
+C`T3',A`T2',9,false
\ No newline at end of file
diff --git a/data/metall_graph/pq/intsasstrings_0.parquet b/data/metall_graph/pq/intsasstrings_0.parquet
new file mode 100644
index 0000000..3109ef7
Binary files /dev/null and b/data/metall_graph/pq/intsasstrings_0.parquet differ
diff --git a/data/metall_graph/pq/regex_0.parquet b/data/metall_graph/pq/regex_0.parquet
new file mode 100644
index 0000000..c45272f
Binary files /dev/null and b/data/metall_graph/pq/regex_0.parquet differ
diff --git a/data/metall_graph/requirements.txt b/data/metall_graph/requirements.txt
new file mode 100644
index 0000000..dd5e104
--- /dev/null
+++ b/data/metall_graph/requirements.txt
@@ -0,0 +1,3 @@
+pyarrow
+mpi4py
+pandas