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.
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Question: This process is called 'laying' and is always carried out in the opposite direction to that used in the previous stage of twisting the strands; it is, moreover, distinct from the simple spin or twist and is twofold, in that:

Answer: This process


Question: As the rope is laid up its length contracts like a coiled spring, giving it a certain elasticity.

Answer: its length


Question: The direction of the lay can also be seen at a glance when the rope is viewed from above, as illustrated in fig. 6-5 (i).

Answer:
The direction of the lay


