Tethys child Tyche
Find the relation between <e1>Tethys<\e1> and <e2>Tyche<\e2>.
Tyche (; from, Túkhē, meaning " luck " ; Roman equivalent : Fortuna) was the presiding tutelary deity who governed the fortune and prosperity of a city, its destiny. In Classical Greek mythology, she is the daughter of Aphrodite and Zeus or Hermes. In literature, she might be given various genealogies, as a daughter of Hermes and Aphrodite, or considered as one of the Oceanids, daughters of Oceanus, and Tethys, or of Zeus. She was connected with Nemesis and Agathos Daimon (" good spirit "). The Greek historian Polybius believed that when no cause can be discovered to events such as floods, droughts, frosts, or even in politics, then the cause of these events may be fairly attributed to Tyche. 
Tethys Tyche