Question: An inner satellite of which planet is named for a Shakespearean character notable for "the quality of mercy" speech?

full_context: Document 1: The Merchant of Venice (1923 film): The Merchant of Venice (German: Der Kaufmann von Venedig) is a 1923 German silent drama film directed by Peter Paul Felner and starring Werner Krauss, Henny Porten and Harry Liedtke. The film is an adaptation of William Shakespeare's play "The Merchant of Venice". It was released in the United States in 1926 as The Jew of Mestri. The film was made on location in Venice, with scenes and characters added which were not in the original play. This is the surviving copy, being two reels shorter than the German version. The characters in the German retained Shakespeare’s nomenclature, but in the American they were given new names sourced from the Italian work "Il Pecorone", a 14th-century short story collection attributed to Giovanni Fiorentino, from which Shakespeare is believed to have drawn his idea. The film purports to be a return to the original, as an excuse for its differences from the play.
Document 2: Shylock: Shylock is a character in William Shakespeare's play "The Merchant of Venice". A Venetian Jewish moneylender, Shylock is the play's principal antagonist. His defeat and conversion to Christianity forms the climax of the story.
Document 3: Jessica (The Merchant of Venice): Jessica is the daughter of Shylock, a Jewish moneylender, in William Shakespeare's "The Merchant of Venice" (  1598 ). In the play, she elopes with Lorenzo, a pennyless Christian, and a chest of her father's money, eventually ending up in Portia and Bassanio's household. In the play's dramatic structure, Jessica is a minor but pivotal role. Her actions motivate Shylock's vengeful insistence on his "pound of flesh" from Antonio; her relationships with Lorenzo and Shylock serves as a mirror and contrast to Portia's with Bassanio and with her father; her conversion to Christianity is the end of Shylock's line's adherence to the Jewish faith.
Document 4: Prospero (moon): Prospero ( ) is a relatively small retrograde irregular satellite of Uranus discovered on 18 July 1999 by the astrophysicist Matthew Holman and his team, and given the provisional designation S/1999 U 3. Confirmed as Uranus XVIII it was named after the sorcerer Prospero in William Shakespeare's play "The Tempest".
Document 5: The Merchant of Venice: The Merchant of Venice is a 16th-century play by William Shakespeare in which a merchant in Venice must default on a large loan provided by an abused Jewish moneylender. It is believed to have been written between 1596 and 1599. Though classified as a comedy in the First Folio and sharing certain aspects with Shakespeare's other romantic comedies, the play is perhaps most remembered for its dramatic scenes, and it is best known for Shylock and the famous "Hath not a Jew eyes?" speech. Also notable is Portia's speech about "the quality of mercy". Critic Harold Bloom listed it among Shakespeare's great comedies.
Document 6: Portia (moon): Portia ( ) is an inner satellite of Uranus. It was discovered from the images taken by "Voyager 2" on 3 January 1986, and was given the temporary designation S/1986 U 1. The moon is named after Portia, the heroine of William Shakespeare's play "The Merchant of Venice". It is also designated Uranus XII.
Document 7: The Quality of Mercy (book): The Quality of Mercy is the title of several different books. The phrase taken from a speech by Portia in William Shakespeare's play "The Merchant of Venice". The speech begins:
Document 8: Portia (moon): Portia ( ) is an inner satellite of Uranus. It was discovered from the images taken by "Voyager 2" on 3 January 1986, and was given the temporary designation S/1986 U 1. The moon is named after Portia, the heroine of William Shakespeare's play "The Merchant of Venice". It is also designated Uranus XII.
Document 9: Measure for Measure: Measure for Measure is a play by William Shakespeare, believed to have been written in 1603 or 1604. Originally published in the "First Folio" of 1623, where it was listed as a comedy, the play's first recorded performance occurred in 1604. The play's main themes include justice, "mortality and mercy in Vienna," and the dichotomy between corruption and purity: "some rise by sin, and some by virtue fall." Mercy and virtue prevail, as the play does not end tragically, with virtues such as compassion and forgiveness being exercised at the end of the production. While the play focuses on justice overall, the final scene illustrates that Shakespeare intended for moral justice to temper strict civil justice: a number of the characters receive understanding and leniency, instead of the harsh punishment to which they, according to the law, could have been sentenced.
Document 10: Belinda (moon): Belinda ( ) is an inner satellite of the planet Uranus. Belinda was discovered from the images taken by "Voyager 2" on 13 January 1986 and was given the temporary designation S/1986 U 5. It is named after the heroine of Alexander Pope's "The Rape of the Lock". It is also designated Uranus XIV.
Document 11: Bianca (moon): Bianca ( ) is an inner satellite of Uranus. It was discovered from the images taken by "Voyager 2" on January 23, 1986, and was given the temporary designation S/1986 U 9. It was named after the sister of Katherine in Shakespeare's play "The Taming of the Shrew". It is also designated Uranus VIII.
Document 12: Mab (moon): Mab ( ), or Uranus XXVI (26), is an inner satellite of Uranus. It was discovered by Mark R. Showalter and Jack J. Lissauer in 2003 using the Hubble Space Telescope. It was named after Queen Mab, a fairy queen from English folklore who is mentioned in William Shakespeare's play "Romeo and Juliet".
Document 13: Miranda (moon): Miranda, also designated Uranus V, is the smallest and innermost of Uranus's five round satellites. It was discovered by Gerard Kuiper on 16 February 1948 at McDonald Observatory, and named after Miranda from William Shakespeare's play "The Tempest". Like the other large moons of Uranus, Miranda orbits close to its planet's equatorial plane. Because Uranus orbits the Sun on its side, Miranda's orbit is perpendicular to the ecliptic and shares Uranus's extreme seasonal cycle.
Document 14: Cupid (moon): Cupid ( ) is an inner satellite of Uranus. It was discovered by Mark R. Showalter and Jack J. Lissauer in 2003 using the Hubble Space Telescope. It was named after a character in William Shakespeare's play "Timon of Athens".
Document 15: The quality of mercy (Shakespeare quote): "The quality of mercy" refers to a quote by Portia in William Shakespeare's "The Merchant of Venice"; it occurs during Act IV, Scene 1, set in a Venetian Court of Justice. It is the speech in which Portia begs Shylock for mercy. Some sources set apart the first four lines of the speech or refer only to the first four lines as the subject of "The quality of mercy". Other sources refer to a longer portion of the speech but not the full 22 lines.
ground_truth: Uranus