Input: Frédéric Chopin
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.

Who were the beneficiaries of his last public concert?
Output: Polish refugees.

Input: North Carolina
The Appalachian Mountains are the coolest area of the state, with temperatures averaging in the low 40s and upper 30s °F (6–3 °C) for highs in the winter and falling into the low 20s °F (−5 °C) or lower on winter nights. Relatively cool summers have temperatures rarely rising above 80 °F (27 °C). Average snowfall in many areas exceeds 30 in (76 cm) per year, and can be heavy at the higher elevations; for example, during the Blizzard of 1993 more than 60 in (152 cm) of snow fell on Mount Mitchell over a period of three days. Mount Mitchell has received snow in every month of the year.

What mountain range makes up the coolest part of North Carolina?
Output: The Appalachian Mountains

Input: Child labour
Other scholars[who?] suggest that these arguments are flawed, ignores history and more laws will do more harm than good. According to them, child labour is merely the symptom of a greater disease named poverty. If laws ban all lawful work that enables the poor to survive, informal economy, illicit operations and underground businesses will thrive. These will increase abuse of the children. In poor countries with very high incidence rates of child labour - such as Ethiopia, Chad, Niger and Nepal - schools are not available, and the few schools that exist offer poor quality education or are unaffordable. The alternatives for children who currently work, claim these studies, are worse: grinding subsistence farming, militia or prostitution. Child labour is not a choice, it is a necessity, the only option for survival. It is currently the least undesirable of a set of very bad choices.

What do these scholars argue for keeping child labour as a practice?
Output: only option for survival

Input: Infection
Another effective way to decrease the transmission rate of infectious diseases is to recognize the effects of small-world networks. In epidemics, there are often extensive interactions within hubs or groups of infected individuals and other interactions within discrete hubs of susceptible individuals. Despite the low interaction between discrete hubs, the disease can jump to and spread in a susceptible hub via a single or few interactions with an infected hub. Thus, infection rates in small-world networks can be reduced somewhat if interactions between individuals within infected hubs are eliminated (Figure 1). However, infection rates can be drastically reduced if the main focus is on the prevention of transmission jumps between hubs. The use of needle exchange programs in areas with a high density of drug users with HIV is an example of the successful implementation of this treatment method.  Another example is the use of ring culling or vaccination of potentially susceptible livestock in adjacent farms to prevent the spread of the foot-and-mouth virus in 2001.

When was vaccination used to prevent the spread of the foot-and-mouth virus?
Output:
2001