Input: Read this: The battle secured the beachheads of the U.S. Sixth Army on Leyte against attack from the sea, broke the back of Japanese naval power and opened the way for an advance to the Ryukyu Islands in 1945. The only significant Japanese naval operation afterwards was the disastrous Operation Ten-Go in April 1945. Kurita's force had begun the battle with five battleships; when he returned to Japan, only Yamato was combat-worthy. Nishimura's sunken Yamashiro was the last battleship in history to engage another in combat.
Question: When did Operation Ten-Go occur?

Output: April 1945


QUES: By the early 1940s, the company was concentrating on lower-budget productions that were the company's main staple: westerns, melodramas, serials and sequels to the studio's horror pictures, the latter now solely B pictures. The studio fostered many series: The Dead End Kids and Little Tough Guys action features and serials (1938–43); the comic adventures of infant Baby Sandy (1938–41); comedies with Hugh Herbert (1938–42) and The Ritz Brothers (1940–43); musicals with Robert Paige, Jane Frazee, The Andrews Sisters, and The Merry Macs (1938–45); and westerns with Tom Mix (1932–33), Buck Jones (1933–36), Bob Baker (1938–39), Johnny Mack Brown (1938–43); Rod Cameron (1944–45), and Kirby Grant (1946–47).

When did westerns with Johnny Rod Brown run?
What is the answer?
ANS: unanswerable


QUES: Since annelids are soft-bodied, their fossils are rare – mostly jaws and the mineralized tubes that some of the species secreted. Although some late Ediacaran fossils may represent annelids, the oldest known fossil that is identified with confidence comes from about 518 million years ago in the early Cambrian period. Fossils of most modern mobile polychaete groups appeared by the end of the Carboniferous, about 299 million years ago. Palaeontologists disagree about whether some body fossils from the mid Ordovician, about 472 to 461 million years ago, are the remains of oligochaetes, and the earliest indisputable fossils of the group appear in the Tertiary period, which began 65 million years ago.
How old is the oldest living annelid?

ANS: unanswerable


Another term for Christians which appears in the New Testament is "Nazarenes" which is used by the Jewish lawyer Tertullus in Acts 24. Tertullian (Against Marcion 4:8) records that "the Jews call us Nazarenes," while around 331 AD Eusebius records that Christ was called a Nazoraean from the name Nazareth, and that in earlier centuries "Christians," were once called "Nazarenes." The Hebrew equivalent of "Nazarenes", Notzrim, occurs in the Babylonian Talmud, and is still the modern Israeli Hebrew term for Christian.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In which book of the Old Testament does Tertullus use the term Nazarenes to refer to Christians?
Ah, so.. unanswerable


Question: Executive Directors and Under-Secretaries General of the UN
2011–present Dr Babatunde Osotimehin (Nigeria)
2000–2010 Ms Thoraya Ahmed Obaid (Saudi Arabia)
1987–2000 Dr Nafis Sadik (Pakistan)
1969–87 Mr Rafael M. Salas (Philippines)
Try to answer this question if possible: Who from the UN was missing during 1969-87?
Answer: unanswerable


Input: Read this: Since the 1980s, as the complexity of buildings began to increase (in terms of structural systems, services, energy and technologies), the field of architecture became multi-disciplinary with specializations for each project type, technological expertise or project delivery methods. In addition, there has been an increased separation of the 'design' architect [Notes 1] from the 'project' architect who ensures that the project meets the required standards and deals with matters of liability.[Notes 2] The preparatory processes for the design of any large building have become increasingly complicated, and require preliminary studies of such matters as durability, sustainability, quality, money, and compliance with local laws. A large structure can no longer be the design of one person but must be the work of many. Modernism and Postmodernism have been criticised by some members of the architectural profession who feel that successful architecture is not a personal, philosophical, or aesthetic pursuit by individualists; rather it has to consider everyday needs of people and use technology to create liveable environments, with the design process being informed by studies of behavioral, environmental, and social sciences.
Question: Who can no longer design a large structure?

Output:
one person