Given the question: Information: - In Greek mythology and, later, Roman mythology, the Oceanids are sea nymphs who were the three thousand daughters of the Titans Oceanus and Tethys. Each was the patroness of a particular spring, river, sea, lake, pond, pasture, flower or cloud. Some of them, such as Clymene, Asia, and Electra, were closely associated with the Titan gods or personified abstract concepts (Tyche, Peitho). - Oceanus ("keanos"), also known as Ogenus ("Ogenos", ) or Ogen (), was a divine figure in classical antiquity, believed by the ancient Greeks and Romans to be the divine personification of the sea, an enormous river encircling the world. - Tyche (from , meaning "luck"; Roman equivalent: Fortuna) was the presiding tutelary deity that governed the fortune and prosperity of a city, its destiny. She is the daughter of Aphrodite and Zeus or Hermes. - Pleione ( / pla.ni / ; from the Greek or ) was an Oceanid nymph in Greek mythology . She lived in a southern region of Greece called Arcadia , on a mountain named Mount Kyllini . She married the Titan Atlas and gave birth to the Hyades , Hyas and the Pleiades . She was also the protectress of sailing . Her grandson was the god Hermes and the demigod Iasion was her great - grandson . What is the relationship between 'pleione ' and 'oceanus'?
The answer is:
father