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:
Indian Hemp is not reliable for cordage.
answer:
Indian Hemp


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


question:
The ropes supplied to the Royal Navy are made from various kinds of vegetable fibre which may differ in strength, weight, flexibility, hardness or resistance to wear, elasticity, resistance to weather, or behaviour when wet.
answer:

The ropes