Your scenarios are both ‘stabbed by two girls from Wales’. Except if in your Scenario 2 it’s the same girl, in which case it becomes ‘stabbed twice by a girl from Wales’.
What you need is Scenario 3:
Event 1: Welsh Girl 1 and Welsh Girl 2 stab
Event 2: Welsh Girl X and Welsh Girl Y stab
Where X could be 1, 2, or other, and Y is the complement to X, or other.
Neither.
Your scenarios are both ‘stabbed by two girls from Wales’. Except if in your Scenario 2 it’s the same girl, in which case it becomes ‘stabbed twice by a girl from Wales’.
What you need is Scenario 3:
Where X could be 1, 2, or other, and Y is the complement to X, or other.
Dude you’re like my users always finding edge cases for the code I wrote.