instruction:
This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
question:
Passage: In Canada, "college" generally refers to a two-year, non-degree-granting institution, while "university" connotes a four-year, degree-granting institution. Universities may be sub-classified (as in the Macleans rankings) into large research universities with many PhD granting programs and medical schools (for example, McGill University); "comprehensive" universities that have some PhDs but aren't geared toward research (such as Waterloo); and smaller, primarily undergraduate universities (such as St. Francis Xavier). Question: What type of institution is a college in Canada?
answer:
non-degree-granting


question:
Passage: During the Franco-Prussian War and the Siege of Strasbourg, the city was heavily bombarded by the Prussian army. The bombardment of the city was meant to break the morale of the people of Strasbourg. On 24 and 26 August 1870, the Museum of Fine Arts was destroyed by fire, as was the Municipal Library housed in the Gothic former Dominican church, with its unique collection of medieval manuscripts (most famously the Hortus deliciarum), rare Renaissance books, archeological finds and historical artifacts. The gothic cathedral was damaged as well as the medieval church of Temple Neuf, the theatre, the city hall, the court of justice and many houses. At the end of the siege 10,000 inhabitants were left without shelter; over 600 died, including 261 civilians, and 3200 were injured, including 1,100 civilians. Question: Who bombarded the city of Strasbourg? 
answer:
Prussian army


question:
Passage: Although not yet tested as a therapy in humans, a growing body of evidence indicates that zinc may preferentially kill prostate cancer cells. Because zinc naturally homes to the prostate and because the prostate is accessible with relatively non-invasive procedures, its potential as a chemotherapeutic agent in this type of cancer has shown promise. However, other studies have demonstrated that chronic use of zinc supplements in excess of the recommended dosage may actually increase the chance of developing prostate cancer, also likely due to the natural buildup of this heavy metal in the prostate. Question: What type of agent is zync useful as against prostate cancer?
answer:

chemotherapeutic