The following six sentences come from a paragraph. The first and the last sentences are given. Choose the order in which the four sentences (PQRS) should appear to complete the paragraph.
S1: Lee went to his friends, but none of them was ready to help him now.
S6: Now the young man understood that he had made a mistake.
P: He had to look after the farmer's pigs.
Q: And when he was hungry he ate the food which was given to the pigs.
R: He went away from the city and wandered around the countryside looking for food to eat.
S: In the end, he went to the house of a farmer and became his servant.
The proper sequence should be: