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: Change Square in the centre of the Yemeni capital has been transformed into a sprawling tent city, reports the BBC's correspondent in Sanaa, who cannot be named for safety reasons.

Yemen protesters show unity and determination