TASK DEFINITION: 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.
PROBLEM: Passage: Chopin made his last public appearance on a concert platform at London's Guildhall on 16 November 1848, when, in a final patriotic gesture, he played for the benefit of Polish refugees. By this time he was very seriously ill, weighing under 99 pounds (i.e. less than 45 kg), and his doctors were aware that his sickness was at a terminal stage. Question: Who were the beneficiaries of his last public concert?

SOLUTION: Polish refugees.

PROBLEM: Passage: Paris has a typical Western European oceanic climate (Köppen climate classification: Cfb ) which is affected by the North Atlantic Current. The overall climate throughout the year is mild and moderately wet. Summer days are usually warm and pleasant with average temperatures hovering between 15 and 25 °C (59 and 77 °F), and a fair amount of sunshine. Each year, however, there are a few days where the temperature rises above 32 °C (90 °F). Some years have even witnessed long periods of harsh summer weather, such as the heat wave of 2003 when temperatures exceeded 30 °C (86 °F) for weeks, surged up to 40 °C (104 °F) on some days and seldom cooled down at night. More recently, the average temperature for July 2011 was 17.6 °C (63.7 °F), with an average minimum temperature of 12.9 °C (55.2 °F) and an average maximum temperature of 23.7 °C (74.7 °F). Question: Which current affects Paris' weather?

SOLUTION: North Atlantic Current

PROBLEM: Passage: Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown. Question: What were elevators originally built for?

SOLUTION:
moving goods in bulk in mines and factories