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.

Handling of vegetable fibre cordage.
vegetable fibre cordage

In the Royal Navy cordage is described by reference to the circumference of the rope measured in inches and to the material from which it is made-for example, 4Â½-inch manila.
cordage

Weight, breaking strength and methods of supply will be found in Volume II.

Weight, breaking strength and methods of supply

