Input: Read this: Commensal relationships may involve one organism using another for transportation (phoresy) or for housing (inquilinism), or it may also involve one organism using something another created, after its death (metabiosis). Examples of metabiosis are hermit crabs using gastropod shells to protect their bodies and spiders building their webs on plants.
Question: What occurs when the spider utilizes phoresy with the hermit crab?

Output: unanswerable


Input: Read this: In early 2009, Spielberg shot the first film in a planned trilogy of motion capture films based on The Adventures of Tintin, written by Belgian artist Hergé, with Peter Jackson. The Adventures of Tintin: The Secret of the Unicorn, was not released until October 2011, due to the complexity of the computer animation involved. The world premiere took place on October 22, 2011 in Brussels, Belgium. The film was released in North American theaters on December 21, 2011, in Digital 3D and IMAX. It received generally positive reviews from critics, and grossed over $373 million worldwide. The Adventures of Tintin won the award for Best Animated Feature Film at the Golden Globe Awards that year. It is the first non-Pixar film to win the award since the category was first introduced. Jackson has been announced to direct the second film.
Question: What will be the name of the next Tintin movie?

Output: unanswerable


Input: Read this: Martin Luther, a German monk, started the German Reformation by posting 95 theses on the castle church of Wittenberg on October 31, 1517. The immediate provocation spurring this act was Pope Leo X’s renewal of the indulgence for the building of the new St. Peter's Basilica in 1514. Luther was challenged to recant his heresy at the Diet of Worms in 1521. When he refused, he was placed under the ban of the Empire by Charles V. Receiving the protection of Frederick the Wise, he was then able to translate the Bible into German.
Question: What was Martin Luther's response when challenged to recant his heresy?

Output: he refused


Input: Read this: During the celebration, theaters called tablados are built in many places throughout the cities, especially in Montevideo. Traditionally formed by men and now starting to be open to women, the different Carnival groups (Murgas, Lubolos or Parodistas) perform a kind of popular opera at the tablados, singing and dancing songs that generally relate to the social and political situation. The 'Calls' groups, basically formed by drummers playing the tamboril, perform candombe rhythmic figures. Revelers wear their festival clothing. Each group has its own theme. Women wearing elegant, bright dresses are called vedettes and provide a sensual touch to parades.
Question: What do the different Carnival groups perform together?

Output:
opera