Q4 of The Data Section

[Kai Yu Yeo]

Question: 

• Could someone explain what the yellow highlighted colon : does in the context of the example? It seems to be the opening to defining the new Word "xx", but I cannot appreciate how "5" affects the DO Loop, especially since : comes between 5 and 0.

Thank you.

Reference: https://m.chatbot.university/guide/data-section.html