instruction:
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.
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:
It is somewhat weaker than three-stranded rope of a similar size, but is less liable to stretch.
answer:
It


question:
The fibre selected, therefore, depends on the use for which the rope is intended.
answer:

The fibre selected


