Question: Which daughter of King Lear does Edmund flirt with to play her off against Regan?

full_context: Document 1: King Duncan: King Duncan is a fictional character in Shakespeare's "Macbeth." He is the father of two youthful sons (Malcolm and Donalbain), and the victim of a well-plotted regicide in a power grab by his trusted captain Macbeth. The origin of the character lies in a narrative of the historical Donnchad mac Crinain, King of Scots, in Raphael Holinshed's 1587 "The Chronicles of England, Scotland, and Ireland," a history of Britain familiar to Shakespeare and his contemporaries. Unlike Holinshed's incompetent King Duncan (who is credited in the narrative with a "feeble and slothful administration"), Shakespeare's King Duncan is crafted as a sensitive, insightful, and generous father-figure whose murder grieves Scotland and is accounted the cause of turmoil in the natural world.
Document 2: Iago: Iago is a fictional character in Shakespeare's "Othello" (c. 1601–1604). Iago is the play's main antagonist, and Othello's standard bearer. He is the husband of Emilia, who is in turn the attendant of Othello's wife Desdemona. Iago hates Othello and devises a plan to destroy him by making him believe that his wife is having an affair with his lieutenant, Michael Cassio.
Document 3: Leir of Britain: Leir was a legendary king of the Britons whose story was recounted by Geoffrey of Monmouth in his pseudohistorical 12th-century "History of the Kings of Britain". According to Geoffrey's genealogy of the British dynasty, Leir's reign would have occurred around the 8th century BC, around the time of the founding of Rome. The story was modified and retold by William Shakespeare in his Jacobean tragedy "King Lear".
Document 4: Goneril: Goneril is a character in Shakespeare's tragic play "King Lear" (1605). She is the eldest of King Lear's three daughters. Along with her sister Regan, Goneril is considered a villain, obsessed with power and overthrowing her elderly father as ruler of the kingdom of Britain. Her aggressiveness is a rare trait for a female character in Elizabethan literature.
Document 5: Stephano (The Tempest): Stephano ( ) is a boisterous and often drunk butler of King Alonso in William Shakespeare's play, "The Tempest". He, Trinculo and Caliban plot against Prospero, the ruler of the island on which the play is set and the former Duke of Milan in Shakespeare's fictional universe. In the play, he wants to take over the island and marry Prospero's daughter, Miranda. Caliban believes Stephano to be a god because he gave him wine to drink which Caliban believes healed him.
Document 6: Edmund (King Lear): Edmund or Edmond is a fictional character and the main antagonist in William Shakespeare's "King Lear". He is the illegitimate son of the Earl of Gloucester, and the younger brother of Edgar, the Earl's legitimate son. Early on in the play, Edmund resolves to get rid of his brother, then his father, and become Earl in his own right. He later flirts with both Goneril and Regan and attempts to play them off against each other.
Document 7: King Claudius: King Claudius is a fictional character and the primary antagonist of William Shakespeare's tragedy "Hamlet". He is the brother to King Hamlet, second husband to Gertrude and uncle and later stepfather to Hamlet. He obtained the throne of Denmark by murdering his own brother with poison and then marrying the late king's widow. He is loosely based on the Jutish chieftain Feng who appears in "Chronicon Lethrense" and in Saxo Grammaticus' "Gesta Danorum". There had never been an actual Danish King of that name.
Document 8: Gertrude (Hamlet): In William Shakespeare's play "Hamlet", Gertrude is Hamlet's mother and Queen of Denmark. Her relationship with Hamlet is somewhat turbulent, since he resents her marrying her husband's brother Claudius after he murdered the King (young Hamlet's father, King Hamlet). Gertrude reveals no guilt in her marriage with Claudius after the recent murder of her husband, and Hamlet begins to show signs of jealousy towards Claudius. According to Hamlet, she scarcely mourned her husband's death before marrying Claudius.
Document 9: King Lear (1987 film): King Lear is a 1987 film directed by Jean-Luc Godard, an adaptation of Shakespeare's play in the style of experimental French New Wave cinema. The script was primarily by Peter Sellars and Tom Luddy, and was originally assigned to Norman Mailer. It is not a typical cinematic adaptation of Shakespeare's tragedy "King Lear", although some lines from the play are used in the film. Only three characters – Lear, Cordelia and Edgar – are common to both, and only Act I, scene 1 is given a conventional cinematic treatment in that two or three people actually engage in relatively meaningful dialogue.
Document 10: King Lear: King Lear is a tragedy written by William Shakespeare. It depicts the gradual descent into madness of the title character, after he disposes of his kingdom giving bequests to two of his three daughters based on their flattery of him, bringing tragic consequences for all. Derived from the legend of Leir of Britain, a mythological pre-Roman Celtic king, the play has been widely adapted for the stage and motion pictures, with the title role coveted by many of the world's most accomplished actors.
Document 11: Cordelia (King Lear): Cordelia is a fictional character in William Shakespeare's tragic play, "King Lear". She is the youngest of King Lear's three daughters, and his favourite. After her elderly father offers her the opportunity to profess her love to him in return for one third of the land in his kingdom, she refuses and is banished for the majority of the play.
Document 12: King Leir: King Leir is an anonymous Elizabethan play about the life of the ancient Brythonic king Leir of Britain. It was published in 1605 but was entered into the Stationers' Register on 15 May 1594. The play has attracted critical attention principally for its relationship with "King Lear", Shakespeare's version of the same story.
Document 13: Laertes (Hamlet): Laertes is a character in William Shakespeare's play "Hamlet". His name is taken from the father of Odysseus in Homer's Odyssey. Laertes is the son of Polonius and the brother of Ophelia. In the final scene, he kills Hamlet with a poisoned sword to avenge the deaths of his father and sister, for which he blamed Hamlet. While dying of the same poison, he implicates King Claudius. The Laertes character is thought to be originated by Shakespeare, as there is no equivalent character in any of the known sources for the play.
Document 14: Re Lear: Re Lear (] ; Italian for "King Lear") is an Italian operatic libretto in four acts written by Antonio Somma for the Italian opera composer Giuseppe Verdi. It was based on "King Lear", "the Shakespeare play with which Verdi struggled for so many years, but without success".
Document 15: Leontes: King Leontes is a fictional character in Shakespeare's play "The Winter's Tale". He is the father of Mammilius and husband to Queen Hermione. He becomes obsessed with the belief that his wife has been having an affair with Polixenes, his childhood friend and King of Bohemia. Because of this, he tries to have his friend poisoned, has his wife imprisoned, and orders his infant daughter to be abandoned. His daughter, Perdita, survives the journey although her protector is killed by a bear, and is raised among commoners. His young son dies of grief at his mother's plight, and Hermione faints on hearing the news and is reported dead. Leontes comes to understand his faults, and is filled with remorse for his ill-treatment of his Queen. At the end of the play, he is reunited with daughter and his wife, whose death has been falsely reported.
ground_truth: Goneril