Read the following group of sentences. The first and the last are numbered 1 and 6 while all others are given by P,Q,R and S. Arrange these four parts in proper order to form a meaningful sentence/paragraph.

1. Metaphysical libertarianism, 

P. when we act freely some part 

Q. not to be confused with the 

R. political doctrine of libertarianism, 

S. says that determinism is false because

6. of the process is leading up to the action.