You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who was the last person executed for treason?" whose answer is William Bruce Mumford.
Each document should contain about 30 words, and these documents should contain useful information.

Query: last person executed for treason
Useful Output:

Doc 1: Although Joyce is the last person to have been convicted and executed for treason, this offence remains law. It dates back to the Treason Act
Doc 2: Here is a list of every traitor, guilty of treason against their sovereign, executed by law. For these traitors, death penalty put an end to their shameful
Doc 3: Hanged on 3 January 1946. Last person to be executed for treason in the United Kingdom. Members of the British Free Corps: Thomas Haller Cooper and Walter
Doc 4: 1682: Pennsylvania Limits Crimes Punishable by Death to Treason and Murder  June 25, 1790: First Person Executed under U.S. Federal Death
Doc 5:  executed following his conviction for treason  last time. The broadcast—a rambling, drunken address—warned Germans of the menace of the