Directions: In the following items each passage consists of six sentences. The first and the sixth sentence are given in the beginning. The middle four sentences in each have been removed and jumbled up. There are labeled P, Q, R and S. You are required to find out of the proper sequence of the four sentences.
S1 : Does the arrival of a particular species of migratory birds herald the onset of monsoon? S6 : These birds have been observed to reach India just prior to the rains. P : They have sighted of the pied crested cuckoos, inhabitants of the African continent Q : If their belief is correct then the rains are round the corner. R : Ornithologists at the Bombay National History Society believe so. S : They normally migrate to the Indian sub-continent just before the monsoon season for breeding.