Possible Clues:

• Nuns' titles
• You get them relatively inwards, perhaps
• Sounds as if there are none relatively like them
• Sounds as if there's none so relative as they
• There's relatively none like them, by the sound of them
• There's none so good as they in the family way
• There's none so sound as they
• Sounds as if there's non even relatively like them
• There may be none like them, by the sound of it
• None so good as they, by the sound of it