diff --git a/or.txt b/or.txt
new file mode 100644
index 0000000..164401e
--- /dev/null
+++ b/or.txt
@@ -0,0 +1,14 @@
+DEF AND
+    PORT IN A
+    PORT IN B
+    PORT OUT Z
+
+    NET ZN
+    NET AN
+    NET BN
+
+    INST NOT1 NAND A A AN
+    INST NOT2 NAND B B BN
+    INST NAND1 NAND AN BN ZN
+    INST NAND2 NAND ZN ZN Z
+ENDDEF