Task: Question Answering
Input (English): Passage: Thompson lived in an apartment in Marblehead, Massachusetts. Just before his senior year, his family moved to Westport, Massachusetts, where he received a Teenager of the Year award—the title of a later solo album. During this time, Thompson composed several songs that appeared in his later career, including "Here Comes Your Man" from Doolittle, and "Velvety Instrumental Version."After graduating from high school in 1983, Thompson studied at the University of Massachusetts Amherst, majoring in anthropology. Thompson shared a room with another roommate for a semester before moving in with future Pixies guitarist Joey Santiago. The two shared an interest in rock music, and Santiago introduced Thompson to 1970s punk and the music of David Bowie; they began to jam together. It was at this time that Thompson discovered The Cars, a band he described as "very influential on me and the Pixies."In his second year of college, Thompson embarked on a trip to San Juan, Puerto Rico, as part of an exchange program. He spent six months in an apartment with a "weird, psycho roommate," who later served as a direct inspiration for the Pixies song "Crackity Jones;" many of the band's early songs refer to Thompson's experiences in Puerto Rico. Thompson failed to learn to speak Spanish formally, and left his studies after debating whether he would go to New Zealand to view Halley's Comet (he later said it "seemed like the cool romantic thing to do at the time"), or start a rock band. He wrote a letter urging Santiago, with the words "we gotta do it, now is the time Joe," to join him in a band upon his return to Boston. 
Question: What was the last name of the person who wrote "we gotta do it, now is the time Joe,"?
Output (English): Thompson.