If you look into the brains of Alpha and Betty in the morning, as well as the weather forecast, the attitude of each girl to the food that their parents will give them today (that is, how much one of them will deteriorate/elevate their mood) and into the brains of their parents (how they will interact with each other and with their daughters) etc., you will have the conditions to understand which of the girls is more likely to throw a stone.
If you look into the brains of Alpha and Betty in the morning, as well as the weather forecast, the attitude of each girl to the food that their parents will give them today (that is, how much one of them will deteriorate/elevate their mood) and into the brains of their parents (how they will interact with each other and with their daughters) etc., you will have the conditions to understand which of the girls is more likely to throw a stone.