diff --git a/SQL/BasicSelect/Weather-Observation-Station11.sql b/SQL/BasicSelect/Weather-Observation-Station11.sql
new file mode 100644
index 0000000..3936aae
--- /dev/null
+++ b/SQL/BasicSelect/Weather-Observation-Station11.sql
@@ -0,0 +1,7 @@
+select distinct city
+  from station
+where 
+  substr(lower(city), 1, 1) not in ('a', 'e', 'i', 'o', 'u')
+     or
+  substr(lower(city), length(city), 1) not in ('a', 'e', 'i', 'o', 'u')
+  order by city;