• People with a single last name in one contact, and multiple last names in another
  • People with just their first name in one contact, and their first + last in another
  • People with just their email address (no name) in one contact, and their name in another
  • People with a misspelled name in one contact, and the correctly spelled name in another
  • People with their names written "Last, First" in one contact, and "First Last" in another
  • People with prefixes in one contact (Dr., Mr., etc.) and not in another
  • People with their maiden name in one contact, and their married name in another