The first and the last parts of a sentence are numbered as 1 and 6. The rest of the sentence is split into four parts named P, Q, R, S. These four parts are not given in their proper order. Read the sentence and find out which of the four combinations is correct. 

1. Let's never 

P. that food 

Q. virtually impossible 

R. forget 

S. is seductive and 

6. to resist