Answer:
Once upon a Time is the best story I suggest
or the girl and the golden ball
From what I could find, Sirens are asking for help. The song they sing is a cry for help. They are described as acting/singing like a "damsels in distress".
Answer: By leading the Utilitarian movement.
Explanation: John Stuart Mill is an English phylosopher,known as one the greatest English phylosophers in history,he was born the year 1806. He was the one who led the Utilitarian movement which is known to be a movement concerned about the happiness of the people.
The Utilitarian Theory tries to show that all happiness is very vital for the wellbeing of man,and that all Government actions should be geared towards completly removing pains from the lives of people.