Given the task definition and input, reply with output. In this task, you are given Wikipedia articles on a range of topics, we ask you to write a question based on the content of the articles that can be answered in a binary manner i.e. True or False.

Half-mast -- Half-mast or half-staff refers to a flag flying below the summit on a pole. In many countries this is seen as a symbol of respect, mourning, distress, or, in some cases, a salute. Strictly speaking, flags are said to be half-mast if flown from ships and half-staff if on land, although not all regional variations of English use ''half-staff.''
can you fly a flag at half mast