TASK DEFINITION: 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.
PROBLEM: A rogue's yarn is also used in commercially manufactured rope to indicate the type of fibre, its quality, and perhaps the particular manufacturer.

SOLUTION: A rogue's yarn

PROBLEM: 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:

SOLUTION: This process

PROBLEM: The strands tend to unlay unless the end of the rope is whipped (i,e, firmly bound) with twine.

SOLUTION:
The strands

