what are the main events in flowers for algernon?
['Charlie applies for the operation./start. ... ', 'Charlie fails Rorschach test. ... ', 'Charlie does the first race with Algernon. ... ', 'Charlie is chosen for the operation. ... ', 'Charlie has the operation done on him. ... ', 'Charlie goes back to the factory. ... ', 'Charlie beats Algernon. ... ', 'Charlie finds out his friends are not his friends.']