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 Input:
Handling of wire rope.

Ex Output:
wire rope


Ex Input:
Because it is not so reliable as manila it is not used for boats, falls, slings or for any purpose where the parting of the rope may endanger life.

Ex Output:
it


Ex Input:
In a normal right-handed rope the fibres are spun right-handed to form yarns

Ex Output:

a normal right-handed rope


