Direction: The following item in this section consists of a sentence, chunks of which have been jumbled up. These chunks have been labelled as P, Q, R and S. Each sentence is followed by four sequences, namely (1), (2), (3) and (4) indicating the rearrangement of the chunks. You are required to select the most appropriate option.

near villages or herder camps (P) / shangdongs are traditional (Q) / stonewalls, usually built (R) / trapping pits with inverted funnel-shaped (S)