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.

[EX Q]: Passage: In the mid-1950s, Frank Burnet, inspired by a suggestion made by Niels Jerne, formulated the clonal selection theory (CST) of immunity. On the basis of CST, Burnet developed a theory of how an immune response is triggered according to the self/nonself distinction: "self" constituents (constituents of the body) do not trigger destructive immune responses, while "nonself" entities (e.g., pathogens, an allograft) trigger a destructive immune response. The theory was later modified to reflect new discoveries regarding histocompatibility or the complex "two-signal" activation of T cells. The self/nonself theory of immunity and the self/nonself vocabulary have been criticized, but remain very influential. Question: What property of T cells caused modification of CST?
[EX A]: the complex "two-signal" activation

[EX Q]: Passage: Gibraltar opened its first comprehensive school in 1972. Between the ages of 12 and 16 two comprehensive schools cater for girls and boys separately. Students may also continue into the sixth form to complete their A-levels. Question: When was the first comprehensive school opened in Gibraltar?
[EX A]: 1972

[EX Q]: Passage: Several universities located outside Boston have a major presence in the city. Harvard University, the nation's oldest institute of higher education, is centered across the Charles River in Cambridge but has the majority of its land holdings and a substantial amount of its educational activities in Boston. Its business, medical, dental, and public health schools are located in Boston's Allston and Longwood neighborhoods. Harvard has plans for additional expansion into Allston. The Massachusetts Institute of Technology (MIT), which originated in Boston and was long known as "Boston Tech", moved across the river to Cambridge in 1916. Tufts University, whose main campus is north of the city in Somerville and Medford, locates its medical and dental school in Boston's Chinatown at Tufts Medical Center, a 451-bed academic medical institution that is home to both a full-service hospital for adults and the Floating Hospital for Children. Question: In 1916, MIT moved across the river to what city?
[EX A]:
Cambridge