Please answer the following question: Information: - In Greek mythology, King Laius (pronounced ), or Laios of Thebes was a divine hero and key personage in the Theban founding myth. Son of Labdacus, he was raised by the regent Lycus after the death of his father. - In Greek mythology , Eteocles ( / tikliz / ; Ancient Greek : ) was a king of Thebes , the son of Oedipus and either Jocasta or Euryganeia . The name is from earlier * Etewoklewes ( ) , meaning '' truly glorious '' . Tawagalawas is thought to be the Hittite rendition of the name . Oedipus killed his father Laius and married his mother without knowing his relationship to either . When the relationship was revealed , he was expelled from Thebes . The rule passed to his sons Eteocles and Polynices . However , because of a curse from their father , the two brothers did not share the rule peacefully . Eteocles was succeeded by his uncle , Creon . - In Greek mythology, Jocasta, also known as Jocaste ("Iokast" ) or Epicaste ( "Epikaste"), was a daughter of Menoeceus, a descendant of the Spartoi, and Queen consort of Thebes, Greece. She was the wife of first Laius, then of their son Oedipus, and both mother and grandmother of Antigone, Eteocles, Polynices and Ismene. She was also sister of Creon and mother-in-law of Haimon. - In Greek mythology, Electryon was the son of Perseus and Andromeda, and king of Tiryns and Mycenae or Medea in Argolis. He married either Anaxo, daughter of his brother Alcaeus and sister of Amphitryon, or Eurydice daughter of Pelops. His wife bore him a daughter Alcmena and many sons (Stratobates, Gorgophonus, Phylonomus, Celaeneus, Amphimachus, Lysinomus, Chirimachus, Anactor, and Archelaus). Electryon had an illegitimate son Licymnius by Midea, a Phrygian woman. The six sons of Pterelaus, King of the Taphians, descended from Electryon's brother Mestor came to Mycenae to claim a share of kingdom. When Electryon spurned their request, they drove off his cattle; Electryon's sons battled against them, and all but Licymnius (on one side) and Everes (on the other) died. Everes sold the cattle to Polyxenus of Elis. Amphitryon, Electryon's nephew and promised in marriage to Alcmena, bought the cattle and returned them to his uncle, but accidentally killed him as he threw his club at one of the cows. Electryon's brother Sthenelus seized the throne of Mycenae, charged Amphitryon with murder, and sent him into exile. - In Greek mythology, Antigone is the daughter/sister of Oedipus and his mother, Jocasta. The meaning of the name is, as in the case of the masculine equivalent Antigonus, "worthy of one's parents" or "in place of one's parents". - In Greek mythology, Labdacus was the only son of Polydorus and a king of Thebes. Labdacus was a grandson of Thebes' founder, Cadmus. His mother was Nycteis, daughter of Nycteus. Polydorus died while Labdacus was a young child, leaving Nycteus as his regent, although Lycus soon replaced him in that office. When Labdacus had grown, he ruled Thebes for a short time. He died while he was still young, after he lost a war with the king of Athens, Pandion, over their borders. Apollodorus writes that he, like his cousin Pentheus, was ripped apart by women in a bacchic frenzy for disrespect to the god Dionysus. Lycus became regent once more after his death, this time for Labdacus' son, Laius. His descendants were called the "Labdacids", and included his son Laius, who fathered Oedipus; Oedipus' children were Polynices, Eteocles, Antigone, and Ismene. - Creon ("Kren") is a figure in Greek mythology best known as the ruler of Thebes in the legend of Oedipus. He had four sons and three daughters with his wife, Eurydice (sometimes known as Henioche): Henioche, Pyrrha, Megareus (also called Menoeceus), Lycomedes and Haimon. Creon and his sister, Jocasta, were descendants of Cadmus and of the Spartoi. He is sometimes considered to be the same person who purified Amphitryon of the murder of his uncle Electryon and father of Megara, first wife of Heracles. - Ismene ("Ismn") is the name of the daughter and half-sister of Oedipus, daughter and granddaughter of Jocasta, and sister of Antigone, Eteocles, and Polynices. She appears in several plays of Sophocles: at the end of "Oedipus the King", in "Oedipus at Colonus" and in "Antigone". She also appears at the end of Aeschylus' "Seven Against Thebes". What is the relationship between 'eteocles' and 'antigone'?
Answer:
sister