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

Answer: It


Question: Junk and rounding are supplied for lashings and other securings where the use of good rope is not necessary.

Answer: Junk and rounding


Question: Commercially manufactured manila ropes over 2 inches in circumference and complying with the specification of the British Standards Institution are identified as follows: Grade I, 'Special', one black rogue's yarn in three strands; Grade II, 'Standard', one black rogue's yarn in two strands; Grade III, 'Merchant', one black rogue's yarn in one strand.

Answer:
Commercially manufactured manila ropes over 2 inches in circumference and complying with the specification of the British Standards Institution