Extract the answer to the question from the following context. Question: A 2D shape with four equal straight sides and four right angles is called? Context: On July 16, 1989, the Popular Front of Azerbaijan held its first congress and elected Abulfaz Elchibey, who would become President, as its Chairman. On August 19, 600,000 protesters jammed Baku's Lenin Square (now Azadliq Square) to demand the release of political prisoners. In the second half of 1989, weapons were handed out in Nagorno-Karabakh. When Karabakhis got hold of small arms to replace hunting rifles and crossbows, casualties began to mount; bridges were blown up, roads were blockaded, and hostages were taken.
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Answer: Square

Extract the answer to the question from the following context. Question: Who died later, Luis de Camoes or Fernando Pessoa? Context: Adventurer and poet Luis de Camoes (c. 15241580) wrote the epic poem "Os Lusiadas" (The Lusiads), with Virgil's Aeneid as his main influence. Modern Portuguese poetry is rooted in neoclassic and contemporary styles, as exemplified by Fernando Pessoa (18881935). Modern Portuguese literature is represented by authors such as Almeida Garrett, Camilo Castelo Branco, Eca de Queiroz, Fernando Pessoa, Sophia de Mello Breyner Andresen, Antonio Lobo Antunes and Miguel Torga. Particularly popular and distinguished is Jose Saramago, recipient of the 1998 Nobel Prize in Literature.
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Answer: Fernando Pessoa

Extract the answer to the question from the following context. Question: Which of the following is not a tonality: major, sonata or minor? Context: Baroque music is characterized by the use of complex tonal counterpoint and the use of a basso continuo, a continuous bass line. Music became more complex in comparison with the songs of earlier periods. The beginnings of the sonata form took shape in the canzona, as did a more formalized notion of theme and variations. The tonalities of major and minor as means for managing dissonance and chromaticism in music took full shape.
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Answer:
sonata