The Contacts app uses an intelligent merge feature to combine contact info from various sources (GmailTM, Microsoft® Exchange, Facebook®, new entries, etc.). If contact info was joined in error it can be separated back into individual contacts.
From a Home screen, tap Contacts (located at the bottom).
If unavailable, navigate: Apps > Contacts.
These instructions apply to Standard mode only.
From the Contacts tab (located at the top), tap a contact.