premise: How to make marshmallow and oats bars<br>Add 3 tablespoons of butter in a pan and heat it until it completely melts. Add the marshmallows. Make sure to use a bag of them because when they melt, their size will decrease.
hypothesis: The marshmallows have oats in them.
reason: We don't know if they have oats in them or not. There's no mention of the oats in the directions, but we know that there are oats in this dessert.