Is there a difference between the 32 physical characteristics and the the 32 physical marks?

Why does the Buddha ask the same question twice, and why does Subhuti answer it two different ways? In Diamond Sutra Chapter 13 > “Subhuti, what do you think? Can the Buddha be perceived by means of > his thirty-two physical characteristics?” > > “No, Most Honored One. The Buddha cannot be perceived by his > thirty-two physical characteristics. Why? Because the Buddha teaches > that they are not real but are merely called the thirty-two physical > characteristics.” but in Diamond Sutra Chapter 26 > “What do you think Subhuti? Is it possible to recognize the Buddha by > the 32 physical marks?” > > Subhuti replied, “Yes, Most Honored One, the Buddha may thus be > recognized.” Is there a difference between the 32 physical characteristics and the the 32 physical marks?