Read the following group of sentences. The first 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. The Coinage Act of 1873 demonetised 

P. silver as the legal tender of the United States

Q. including two-cent piece, three-cent piece, and half dime

R. and as an effect, several coins

S. in favour of fully adopting the gold standard

6. were discontinued.