<Li> <Ul> <Li> Perseus (Medusa </Li> <Li> Gorgon) </Li> </Ul> </Li> <Ul> <Li> Perseus (Medusa </Li> <Li> Gorgon) </Li> </Ul> <Li> Perseus (Medusa </Li> <Li> Oedipus (Sphinx) </Li>

Narrate how perseus was able to cut off the head of medusa