Update nand.py

nand.py

@@ -134,6 +134,13 @@ def process_query(iniquery, para):
                 cont = re.sub('<.*?>', '', cont)
                 cont = re.sub('Examples:.*', '', cont, flags=re.DOTALL)
                 context += cont
+        else:
+            context += "GOF is abreviation of Gats On the Fly, it is netlist process platform.\n";
+            context += "ECO is abbrevation of engineering change order.\n";
+            context += "LEC is abbrevation of logic equivalence checking.\n";
+            context += "Netlist ECO is to change netlist incrementally by tool or manually.\n";
+            context += "Automatic ECO is to use GOF ECO to do functional netlist ECO automatically.\n";
+
         context += ret
         prompt = f"{context}\n"
         prompt += "------------------------------------------\n"