The question below consists of a set of labeled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.
P. There once was a little boy who had a very bad temper.
Q. The boy gradually began to control his temper over the next few weeks, and the number of nails he was hammering into the fence slowly decreased.
R. His father decided to hand him a bag of nails and said that every time the boy lost his temper, he had to hammer a nail into the fence.
S. On the first day, the boy hammered 37 nails into that fence.