Input: concept: Helen Keller  answers:  ['Light in my Darkness', 'Die Geschichte meines Lebens', 'The Frost King', 'The open door', 'The World I Live In', 'Peace at eventide', 'My religion', 'Jia ru gei wo san tian guang ming', 'The Story of My Life', 'Helen Keller, her Socialist years']
Output: 

 what is the name of book written by helen keller?