In this task you are given a sentence. You must judge whether the main verb of the sentence is in present or past tense. Label the instances as "Present" or "Past" based on your judgment. If there is no verb in the given text, answer "Present".

Input: Consider Input: Mr. Littleton refuses to back down.

Output: Present


Input: Consider Input: " When Burroughs Wellcome submitted it to the FDA for approval as a treatment for AIDS.

Output: Past


Input: Consider Input: Chapter Fifteen The group of men in tattered rail uniforms huddle quietly in the centre of the destroyed North Street Station.


Output: Present