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:
When wet, rope will usually shrink in length in proportion to the amount by which it swells in diameter, but it will recover its original length when dry and after use.
answer:
rope


question:
MATERIALS USED.
answer:
MATERIALS USED


question:
In some countries, and commercially in Great Britain, cordage is sometimes measured by its diameter.
answer:

cordage