Here's my favorite way of using sub(.
The idea of this is to use sub( and sum( in an odd manner.
ex:
->A //You want the third item
:{1,6,6,5,1,4,1 // 1 followed by the lengths of the Item. (Item 1 has a length of 6, Item 2 has a length of 6, Eeems has a length of 5... )
:sub("Item 1Item 2Eeems455556",sum(Ans,1,A),Ans(A+1 //sub(String,Add to get to spot,Length of Item
This results with the third item, "Eeems".
I hope this helped someone. What do you guys think?