Suppose How to bake a cake<br>First, preheat your oven to 350 degrees. Then, mix together flour, sugar, eggs, and butter in a bowl until smooth. Pour the batter into a greased cake pan and bake for 30 minutes or until a toothpick comes out clean.
Can we infer that "The cake should be baked for at least 1 hour"? Yes, no, or maybe?