With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Phil Mickelson is an athlete.
text_B: Shoulder Arms is Charlie Chaplin 's second film for First National Pictures .. Charlie Chaplin. Charlie Chaplin. First National Pictures. First National Pictures. Released in 1918 , it is a silent comedy set in France during World War I .. 1918 in film. World War I. World War I. The main part of the film actually occurs in a dream .. It co-starred Edna Purviance and Sydney Chaplin , Chaplin 's elder brother .. Edna Purviance. Edna Purviance. Sydney Chaplin. Sydney Chaplin. It is Chaplin 's shortest feature film as well as the first feature film that he directed .. feature film. feature film
not_related.