diff --git a/demo/circulation-input.lgf b/demo/circulation-input.lgf
deleted file mode 100644
--- a/demo/circulation-input.lgf
+++ /dev/null
@@ -1,32 +0,0 @@
-@nodes 
-coordinates_x   coordinates_y   delta   label   
--396.638        -311.798        0       0       
-154.409         -214.714        13      1       
--378.119        -135.808        0       2       
--138.182        -58.0452        0       3       
-55              -76.1018        0       4       
--167.302        169.88          0       5       
-71.6876         38.7452         0       6       
--328.784        257.777         0       7       
-354.242         67.9628         -13     8       
-147             266             0       9       
-@edges 
-                label   lo_cap  up_cap  
-0       1       0       0       20      
-0       2       1       0       0       
-1       1       2       0       3       
-1       2       3       0       8       
-1       3       4       0       8       
-2       5       5       0       5       
-3       2       6       0       5       
-3       5       7       0       5       
-3       6       8       0       5       
-4       3       9       0       3       
-5       7       10      0       3       
-5       6       11      0       10      
-5       8       12      0       10      
-6       8       13      0       8       
-8       9       14      0       20      
-8       1       15      0       5       
-9       5       16      0       5       
-@end