Read the following group of sentences. The 1^st and the last sentences are numbered 1 and 6, the rest are numbered P, Q, R, and S. Arrange these four sentences in proper order to form a meaningful paragraph/sentence.

1. Charlie Chaplin, in a film, drew attention to the dangerous influence of the machine on man.

P. An endless belt passed in front of him carrying slowly an endless line of articles.
Q. In the film, he got a job in a factory that employed mass-production methods.
R. As each one passed, he tightened one nut on one bolt with his spanner.
S. He had to stand by a machine with a spanner in his hand.

6. His work was done with one turn of the wrist repeated throughout the day.