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.

Input: Consider Input: Its wearing qualities are about the same as those of manila, but it is far more flexible.

Output: It


Input: Consider Input: This should be secured in the stern-sheets of the first boat.

Output: This


Input: Consider Input: American hemp is about equal to European hemp, but is not used by the Admiralty.


Output: American hemp