What does the Chalcedonian Creed mean by person?

The creed says: > the distinction of natures being by no means taken away by the union, > but rather the property of each nature being preserved, and concurring > in one Person and one Subsistence, not parted or divided into two > persons, but one and the same Son, and only begotten, God the Word, > the Lord Jesus Christ [1] Usually I understand the word 'person' to mean 'mind'. However, according to some scholars it is orthodox to say Christ has two wills or minds, a human mind and a divine mind [2] . If this is true, what does the creed then mean by person if not mind? Edit: My question is asking specifically about what the creed means by a particular word, which is different to other questions which ask about what persons are in the abstract. Suitable answers perhaps could provide parallel texts from the time period which give additional context for determining the intended meaning of prosopon.