Read the following premise and pick the correct choice. Then, respond with which of the choices is correct.
Premise: The girl's mouth ached.

Choice 1: She lost a tooth.
Choice 2: She swallowed her gum.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1 or 2 are both possible depending on the context. Without more information, it's impossible to determine which one is correct.