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

S1. Marine biologists are investigating the deaths of at least six whales found washed up on France's western shores.

P. They have no apparent sign of having been hit up by a ship or caught in a trawler's net.

Q. Fin whale is the second-largest species of whale after the blue whale. 

R. So, researchers on Monday, used a mechanical digger and long knives to dissect one of the fin whales.

S. In an average year, between three and, at most, 10 fin whales are deposited dead on France's beaches.

S6. The most recent fin whale corpse was found on Friday near Saint-Hilaire-de-Riez.