I have 3 diff schema

userSchema {
name,
email,
phone,
history[],
classrooms[]
}

classrooms{
name,
session[],
instructors[_id,ref:user],
students[id,ref:user],
organizationId
}

Organization{
name,
email,
phone,
code,
classrooms[id,ref:classrooms]
}

Now I wanna populate classrooms in organization with {id,name,instructors[{name}]}