Arrange the sentences P, Q, R, S and T in the correct order to form a meaningful paragraph.

P: Visitors find such directions confusing at first, since no map shows the banyan tree or the green gate.
Q: Ask for directions in most Indian neighbourhoods, and you will rarely hear a street name.
R: Even for them, trouble begins when a landmark disappears and people go on using it in their directions.
S: For people who live there, however, the system works well, because everyone knows the same landmarks.
T: Instead, you will be told to turn left at the big banyan tree, or to stop at the house with the green gate.