LDAP filter problem

Hi!
I'm having a filter problem. I hope someone can help me.

Let's say my LDAP structure looks something like this:
ou=Subject,ou=Course, ou=1234
..where Subject is of aux type x-subject, course is of aux type x-course and the last part is of type x-school.

I am wondering if it is possible to write a filter that finds all subjects that contains a school name 1234?

So from the following list i only want to filter out the first subject
ou=Math,ou=1, ou=1234
ou=Math,ou=2, ou=3333
ou=Math,ou=3, ou=3333

Thanks in advance,

Henrik

hi,
I assume usage -W flag so as to filtering query...?

Filtering on the OU is the simplest LDAP query filter