instruction:
In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
question:
passage: A signature page has a line for the signature of a passport holder. A passport is not valid until it is signed by the passport holder. If a holder is unable to sign his passport, it is to be signed by a person who has legal authority to sign on the holder's behalf.
 question: is a us passport valid if not signed?
answer:
No


question:
passage: The CN Tower held the record for the world's tallest free-standing structure for 32 years until 2007 and was the world's tallest tower until 2009 being overtaken by Burj Khalifa and Canton Tower, respectively. It is now the ninth tallest tower in the world and remains the tallest free-standing structure in the Western Hemisphere. In 1995, the CN Tower was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers. It also belongs to the World Federation of Great Towers.
 question: is the cn tower one of the tallest buildings?
answer:
Yes


question:
passage: The cathedral was already in severe structural decline by the beginning of the 17th century. Restoration work begun by Inigo Jones in the 1620s was halted at the time of the English Civil War (1642--1651). Sir Christopher Wren was attempting another restoration in 1666 when the cathedral was destroyed in the Great Fire of London. At that point, the old structure was demolished, and the present, domed cathedral was erected on the site, with an English Baroque design by Wren.
 question: did the great fire of london destroy st paul's cathedral?
answer:

Yes


