Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: A Pennsylvania school has said it will close for a day while a nearby pro-gun church hosts an event inviting guests to bring their unloaded AR-15 rifles.

School to close due to nearby church's AR-15 rifle event