<prompt> Translate the following text to EnglishJaribio hilo lilihusisha kuanzisha hofu ya bomu ya ghafula ili kuwafanya wafanyakazi, ambao hawakujua kwamba tisho hilo lilikuwa bandia, wahamishe jengo hilo.  <response>: The test involved staging a surprise bomb scare to get employees, who were unaware that the threat was a pretense, to evacuate the building. 