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: Philadelphia's an annualized unemployment rate was 7.8% in 2014, down from 10.0%the previous year. This is higher than the national average of 6.2%. Similarly, the rate of new jobs added to the city's economy lagged behind the national job growth. In 2014, about 8,800 jobs were added to the city's economy. Sectors with the largest number of jobs added were in education and health services, leisure and hospitality, and professional and business services. Declines were seen in the city's manufacturing and government sectors. Question: Unemployment rate in 2014?
[EX A]: 7.8%

[EX Q]: Passage: On 30 September, Zhou Enlai warned the United States that China was prepared to intervene in Korea if the United States crossed the 38th parallel. Zhou attempted to advise North Korean commanders on how to conduct a general withdrawal by using the same tactics which had allowed Chinese communist forces to successfully escape Chiang Kai-shek's Encirclement Campaigns in the 1930s, but by some accounts North Korean commanders did not utilize these tactics effectively. Historian Bruce Cumings argues, however, the KPA's rapid withdrawal was strategic, with troops melting into the mountains from where they could launch guerrilla raids on the UN forces spread out on the coasts. Question: Who vowed to intervene if the US was to engage in conflict North of the 38th parallel?
[EX A]: China

[EX Q]: Passage: Chopin's life and his relations with George Sand have been fictionalized in numerous films. The 1945 biographical film A Song to Remember earned Cornel Wilde an Academy Award nomination as Best Actor for his portrayal of the composer. Other film treatments have included: La valse de l'adieu (France, 1928) by Henry Roussel, with Pierre Blanchar as Chopin; Impromptu (1991), starring Hugh Grant as Chopin; La note bleue (1991); and Chopin: Desire for Love (2002). Question: What was the name of the 1945 movie released about Chopin?
[EX A]:
A Song to Remember