diff --git a/ex3-myself.sql b/ex3-myself.sql
index abd19c5..391d32f 100644
--- a/ex3-myself.sql
+++ b/ex3-myself.sql
@@ -6,9 +6,3 @@ INSERT INTO pet (id, name, breed, age, dead)
 
 INSERT INTO pet (id, name, breed, age, dead)
     VALUES (3, "Zooey", "Cat", 7, 0);
-
-INSERT INTO person_pet (person_id, pet_id)
-    VALUES (1, 2);
-
-INSERT INTO person_pet (person_id, pet_id)
-    VALUES (1, 3);
diff --git a/ex4-myself.sql b/ex4-myself.sql
new file mode 100644
index 0000000..432b133
--- /dev/null
+++ b/ex4-myself.sql
@@ -0,0 +1,5 @@
+INSERT INTO person_pet (person_id, pet_id)
+    VALUES (1, 2);
+
+INSERT INTO person_pet (person_id, pet_id)
+    VALUES (1, 3);
diff --git a/ex4.sql b/ex4.sql
new file mode 100644
index 0000000..5d5eb14
--- /dev/null
+++ b/ex4.sql
@@ -0,0 +1,2 @@
+INSERT INTO person_pet (person_id, pet_id) VALUES (0, 0);
+INSERT INTO person_pet VALUES (0, 1);