Input: Article: In the early 11th century, the Muslim physicist Ibn al-Haytham (Alhacen or Alhazen) discussed space perception and its epistemological implications in his Book of Optics (1021), he also rejected Aristotle's definition of topos (Physics IV) by way of geometric demonstrations and defined place as a mathematical spatial extension. His experimental proof of the intromission model of vision led to changes in the understanding of the visual perception of space, contrary to the previous emission theory of vision supported by Euclid and Ptolemy. In "tying the visual perception of space to prior bodily experience, Alhacen unequivocally rejected the intuitiveness of spatial perception and, therefore, the autonomy of vision. Without tangible notions of distance and size for correlation, sight can tell us next to nothing about such things."

Now answer this question: Whose definition of topos did Alhazen reject?

Output: Aristotle's

Input: Article: Organisms inherit their genes from their parents. Asexual organisms simply inherit a complete copy of their parent's genome. Sexual organisms have two copies of each chromosome because they inherit one complete set from each parent.:1

Now answer this question: How many copies of each chromosome does a sexual organism have?

Output: two copies of each chromosome

Input: Article: Next, Spielberg teamed with Star Wars creator and friend George Lucas on an action adventure film, Raiders of the Lost Ark, the first of the Indiana Jones films. The archaeologist and adventurer hero Indiana Jones was played by Harrison Ford (whom Lucas had previously cast in his Star Wars films as Han Solo). The film was considered an homage to the cliffhanger serials of the Golden Age of Hollywood. It became the biggest film at the box office in 1981, and the recipient of numerous Oscar nominations including Best Director (Spielberg's second nomination) and Best Picture (the second Spielberg film to be nominated for Best Picture). Raiders is still considered a landmark example of the action-adventure genre. The film also led to Ford's casting in Ridley Scott's Blade Runner.

Now answer this question: When did the first Indiana Jones movie come out?

Output:
1981