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: Ropes are made from vegetable fibres each of which is only between two and four feet long, and the first process is to comb these fibres out in a long, even ribbon, as shown in an exaggerated form in fig. 6-1.

Answer: Ropes


Question: The size of a strand is that of the rope from which it was taken

Answer: The size of a strand


Question: This should be secured in the stern-sheets of the first boat.

Answer:
This


