Swift Playground "Learn to Code 2" Chapter "World Building" page Introduction

Hello everyone, I hope playground developers monitor this forum.

In Swift Playground "Learn to Code 2", Chapter "World Building", the Introduction page shows an incorrect example. it instructs to use "world.place(item: Item, atColumn: Int, row: Int), but when I used
"word.place(item: block, atColumnt: 3, row: 3)", I received an error "Extraneous argument label 'item' in call.
Method "word.place(block, atColumnt: 3, row: 3)" worked fine.

Other than that, it's a great tool! I'm using it to teach my daughter (Gr.8).

Thanks!
Alex