Perception (saṃjñā) and discrimination How do perception and discrimination relate?

I remember thinking (when reading) that they were near synonyms
Discernment (wisdom; panna) &amp; consciousness are conjoined, friend, not disjoined. It's not possible, having separated them one from the other, to delineate the difference between them. For what one discerns, that one cognizes. What one cognizes, that one discerns.
Feeling, perception, &amp; consciousness are conjoined, friend, not disjoined. It is not possible, having separated them one from another, to delineate the difference among them. For what one feels, that one perceives. What one perceives, that one cognizes.

Mahavedalla Sutta