Detailed Instructions: In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.
Q: Passage: In the heyday of vaudeville, on the verge of America's entrance into World War I, two talented performers, Jo Hayden and Harry Palmer, set their sights on playing the Palace Theatre on Broadway, the epitome of vaudeville success, and marrying immediately after.
Just weeks before their plans are to be realized Harry gets a draft notice. Intending to obtain a short delay before reporting for duty, he intentionally smashes his hand in a trunk. That same day Jo is notified that her brother, who had been studying to be a doctor, has died in the war.
When she realizes what Harry has done, she rejects him and leaves the act. Harry then tries to undo his rash act and enlist, but none of the armed services will take him as his hand has been permanently crippled. Eventually he resigns himself to participating in the war effort the only way left open to him, entertaining front line troops for the YMCA.
When he and his partner find themselves dangerously close to the front, Harry heroically sets out to warn off an ambulance convoy heading into an artillery bombardment. He is wounded while destroying an enemy machine gun emplacement ambushing the convoy and is apparently commended for his bravery.
After the war, during a victory performance at the Palace Theatre, Jo sees Harry in the audience and runs to him. The two reunite on stage to sing "For Me and My Gal", the first song they ever performed together.
Question: What is the first name of the person who entertains front line troops for the YMCA?
A:
Harry.