title: Predicate for Child to parent entity using NSFetchResultController
body: <p>I have two entities <code>A</code> and <code>B</code>. <code>A</code> has one-to-many relationship with <code>B</code>. Now I want to fetch entity B using <code>NSFetchResultController</code>. If entity <code>A</code> has more than one <code>B</code>, I should get only one <code>B</code> while fetching. Can somebody tell me how to use predicate for this fetch?. Thanks in advance.</p>