Definition: In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.
Input: Aesop ( ; Ancient Greek: , "Aisopos "; c. 620 564 BCE) was a Greek fabulist and story teller credited with a number of fables now collectively known as "Aesop's Fables". Although his existence remains unclear and no writings by him survive, numerous tales credited to him were gathered across the centuries and in many languages in a storytelling tradition that continues to this day. Many of the tales are characterized by animals and inanimate objects that speak, solve problems, and generally have human characteristics. Question: The stream which the city named after the daughter of a Greek fabulist and story teller is a tributary of which river? Answer: Alfeios
Output:
Aesop ; Ancient Greek: , Aisopos ; c. 620 564 BCE was a Greek fabulist and story teller credited with a number of fables now collectively known as Aesops Fables.