diff --git a/DBMS/SQL/Week4/writeup.md b/DBMS/SQL/Week4/writeup.md
index ad66475..6dff2b8 100644
--- a/DBMS/SQL/Week4/writeup.md
+++ b/DBMS/SQL/Week4/writeup.md
@@ -100,3 +100,14 @@ NAME             YEAR TOTAL_ACCIDENTS
 ---------- ---------- ---------------
 Ramesh           2024               2
 ```
+
+### Q5. List the owners who are not involved in any accident.
+Ans.
+```sql
+SQL> select name from person where(driver_id#) not in(select driver_id# from participated);
+
+NAME
+----------
+Rohit
+Saarthak
+```
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