In the following question, there are six sentences marked S1, S6, P, Q, R, S. The positions of S1 and S6 are fixed. You are required to choose one of the four alternatives which would be the most logical sequence of the sentences in the paragraph:

SI: There was a family of pigeons which had made the top of a mosque its abode.

(P) The head of the family discussed the migration with the family, so they moved to a church.

(Q) A family goes together, and so they discussed this issue and planned another migration.

(R) They settled down in their new abode and life was going on smoothly till the church was being decorated this time, again for a festival.

(S) They were living happily for a while and one day when the mosque was being decorated for a festival, the pigeons had to think of relocation.

S6: This time around they migrated and made their new abode at the top of a temple.