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.

[EX Q]: It is used for shrouds and stays of small craft and is supplied in coils of 120 fathoms.
[EX A]: It

[EX Q]: Handling of vegetable fibre cordage.
[EX A]: vegetable fibre cordage

[EX Q]: CONSTRUCTION AND CHARACTERISTICS OF VEGETABLE FIBRE CORDAGE.
[EX A]:
VEGETABLE FIBRE CORDAGE