Suppose How to bake a chocolate cake<br>Preheat the oven to 350°F. Grease and flour two 9-inch round cake pans. In a large bowl, mix together flour, sugar, cocoa powder, baking powder, baking soda, and salt. Add eggs, milk, oil, and vanilla extract, and mix until smooth. Divide batter evenly between the two pans and bake for 30-35 minutes.
Can we infer that "The oven should be preheated to 500°F."? Yes, no, or maybe?