In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Example Input: What was the church of San Tommaso in Formis which has a mosaic medallion for?, Context: The last great period of Roman mosaic art was the 12th13th century when Rome developed its own distinctive artistic style, free from the strict rules of eastern tradition and with a more realistic portrayal of figures in the space. Well-known works of this period are the floral mosaics of the Basilica di San Clemente, the facade of Santa Maria in Trastevere and San Paolo fuori le Mura. The beautiful apse mosaic of Santa Maria in Trastevere (1140) depicts Christ and Mary sitting next to each other on the heavenly throne, the first example of this iconographic scheme. A similar mosaic, the Coronation of the Virgin, decorates the apse of Santa Maria Maggiore. It is a work of Jacopo Torriti from 1295. The mosaics of Torriti and Jacopo da Camerino in the apse of San Giovanni in Laterano from 128894 were thoroughly restored in 1884. The apse mosaic of San Crisogono is attributed to Pietro Cavallini, the greatest Roman painter of the 13th century. Six scenes from the life of Mary in Santa Maria in Trastevere were also executed by Cavallini in 1290. These mosaics are praised for their realistic portrayal and attempts of perspective. There is an interesting mosaic medaillon from 1210 above the gate of the church of San Tommaso in Formis showing Christ enthroned between a white and a black slave. The church belonged to the Order of the Trinitarians which was devoted to ransoming Christian slaves.
Example Output: ransoming Christian slaves

Example Input: which is not a last name, Kroc or Branch?, Context: The library system also includes branch libraries for Architecture, Chemistry & Physics, Engineering, Law, and Mathematics as well as information centers in the Mendoza College of Business, the Kellogg Institute for International Studies, the Joan B. Kroc Institute for International Peace Studies, and a slide library in O'Shaughnessy Hall. A theology library was also opened in fall of 2015. Located on the first floor of Stanford Hall, it is the first branch of the library system to be housed in a dorm room. The library system holds over three million volumes, was the single largest university library in the world upon its completion, and remains one of the 100 largest libraries in the country.
Example Output: branch

Example Input: Where were vocals added to the piano music?, Context: In London Chopin took lodgings at Dover Street, where the firm of Broadwood provided him with a grand piano. At his first engagement, on 15 May at Stafford House, the audience included Queen Victoria and Prince Albert. The Prince, who was himself a talented musician, moved close to the keyboard to view Chopin's technique. Broadwood also arranged concerts for him; among those attending were Thackeray and the singer Jenny Lind. Chopin was also sought after for piano lessons, for which he charged the high fee of one guinea (1.05 in present British currency) per hour, and for private recitals for which the fee was 20 guineas. At a concert on 7 July he shared the platform with Viardot, who sang arrangements of some of his mazurkas to Spanish texts.
Example Output:
At a concert on 7 July