Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: Cruz : When Robbie returned my junior independent research paper , the front corner was folded over . 
In the four years since he made national headlines for his infamous marathon speech against Obamacare , Senator Ted Cruz has become a household name -- first as an ambitious young senator , then as a presidential candidate . 
Kitchener : You were already a well-respected professor by the time Senator Cruz arrived at Princeton . 
Read more But 25 years ago , Cruz was an undergraduate student at Princeton . 
George was Cruz 's constitutional-law professor and his thesis adviser . 
Cruz credits George with pushing him to not only think about the Constitution more deeply , but to constantly revisit his own beliefs . 
On the presidential campaign trail , Cruz regularly turned to George for advice . 
For The Atlantic 's series "On the Shoulders of Giants ," I spoke with Cruz and George about their mentor-mentee relationship . 
Caroline Kitchener : How is the Ted Cruz that you know today different from the Ted Cruz that you knew when he was a student ? 
Ted Cruz : If you were a person on the left , you had a multitude of mentors available on the faculty . 
Cruz : Professor George is scrupulously fair . 
Kitchener : Senator Cruz , when you think back on your time at school with Professor George , what memory sticks out most ?
Output:
Ted Cruz 's Thesis Adviser on How He 's Changed Since College . 