diff --git a/input.csv b/input.csv
deleted file mode 100644
index 4455031..0000000
--- a/input.csv
+++ /dev/null
@@ -1 +0,0 @@
-Cc1c(Cc2ccc3ccccc3n2)c2cc(F)ccc2n1CC(O)=O
diff --git a/model/framework/code/main.py b/model/framework/code/main.py
index 08303ef..10dce28 100644
--- a/model/framework/code/main.py
+++ b/model/framework/code/main.py
@@ -34,6 +34,6 @@ def molweight(smiles_list):
 # write output in a .csv file
 with open(output_file, "w") as f:
     writer = csv.writer(f)
-    writer.writerow(["value"])  # header
+    writer.writerow(["mol_weight"])  # header
     for o in outputs:
         writer.writerow([o])
diff --git a/model/framework/columns/run_columns.csv b/model/framework/columns/run_columns.csv
new file mode 100644
index 0000000..6c7cd57
--- /dev/null
+++ b/model/framework/columns/run_columns.csv
@@ -0,0 +1,2 @@
+name,type,direction,description
+mol_weight,float,intermediate,The calculated molecular weight of the molecule in g/mol
\ No newline at end of file
diff --git a/model/framework/examples/input.csv b/model/framework/examples/input.csv
deleted file mode 100644
index 6422dc1..0000000
--- a/model/framework/examples/input.csv
+++ /dev/null
@@ -1,2 +0,0 @@
-smiles
-Nc1cccc(c1)-c1cc2c(Oc3cccc(O)c3)ncnc2[nH]1
\ No newline at end of file
diff --git a/model/framework/examples/output.csv b/model/framework/examples/output.csv
deleted file mode 100644
index d777b4e..0000000
--- a/model/framework/examples/output.csv
+++ /dev/null
@@ -1,2 +0,0 @@
-value
-318.336
\ No newline at end of file
diff --git a/model/framework/examples/run_input.csv b/model/framework/examples/run_input.csv
new file mode 100644
index 0000000..9e69208
--- /dev/null
+++ b/model/framework/examples/run_input.csv
@@ -0,0 +1,4 @@
+smiles
+Nc1cccc(c1)-c1cc2c(Oc3cccc(O)c3)ncnc2[nH]1
+C1=CN=CC=C1C(=O)NN
+CC(CN1C=NC2=C(N=CN=C21)N)OCP(=O)(O)O
\ No newline at end of file
diff --git a/model/framework/examples/run_output.csv b/model/framework/examples/run_output.csv
new file mode 100644
index 0000000..13738b8
--- /dev/null
+++ b/model/framework/examples/run_output.csv
@@ -0,0 +1,4 @@
+mol_weight
+318.336
+137.14199999999997
+287.21599999999995
\ No newline at end of file