Merge pull request MicrosoftDocs#4768 from Batre-MSFT/patch-6

Added example

Author: chrisda

exchange/exchange-ps/exchange/users-and-groups/Get-UnifiedGroup.md

@@ -79,6 +79,13 @@ Get-UnifiedGroup -Identity "Marketing Department" | Format-List
 
 This example returns detailed information about the Office 365 Group named Marketing Department.
 
+### Example 4
+```powershell
+Get-UnifiedGroup |?{!$_.ManagedBy}
+```
+
+This example returns Office 365 Groups that do not have an owner.
+
 ## PARAMETERS
 
 ### -Anr