Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

[EX Q]: Dominion Day was the name of the holiday commemorating the formation of Canada as a Dominion on 1 July 1867 . It became an official public holiday in 1879 . The holiday was renamed to Canada Day by Act of Parliament on 27 October 1982 .
[EX A]: Dominion Day

[EX Q]: A Dakhma ( Persian : دخمه ; Avestan : lit . `` tower of silence '' ) , also called a Tower of Silence , is a circular , raised structure built by Zoroastrians for excarnation -- that is , for dead bodies to be exposed to carrion birds .
[EX A]: Tower of Silence

[EX Q]: Article I , Section 8 , Clause 7 of the United States Constitution , known as the Postal Clause or the Postal Power , empowers Congress `` To establish Post Offices and post Roads '' .
[EX A]:
Postal Clause