ともだち + の + name

[lemonade96]

Hello, I am at the start of learning Japanese. I tried to do an excercise from my text book when I came across this:
こちらはともだちのマリナさんです。
I don't understand what this is supposed to mean. 'this is (my) friend's Marina'? Or is it a typo?
There is a scan for context.

 

[SoLaTiDoberman]

こちらはともだちのマリナさんです。
In this context, it means, "This is my friend, Marina."

これはともだちの家です。
In this context, it means, "This is my friend's house."

You may think of the two different usage of の.
For example,
こちらはともだちのともだちのマリナさんです。
"This is my friend's friend, Marina."

 

[graysesame]

こちらはともだちのともだちのマリナさんです。
This is a possessive の.
こちらはともだちのともだちのマリナさんです。
This is an appositive の.