The second example in Iterating Through Entries in a String shows how to get the Nth entry from a string, so one possibility would simply be to use For Each Variable N in Number Collection 1..Count and get the Nth entry from each string.
Another would be to "pluck off" the first entry of each string until the strings are empty, something like this (it only shows the replacements, but you can pluck off the string from both lists in each loop.).
