In this task, you are given a sentence. You must find the primary subject in the supplied sentence. The output must be a sub-sequence in the sentence.

[EX Q]: The rope is flexible, durable, strong, and stands up well to wear and weather.
[EX A]: The rope

[EX Q]: Manila rope.
[EX A]: Manila rope

[EX Q]: In the rope trade, right-hand lay is described as Z twist and left-hand lay as S twist, the letters indicating the direction of the lay when the rope is viewed from above.
[EX A]:
right-hand lay