In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

[EX Q]: Question: Which part of the body can lymph nodes be found in? Passage:Diagnosis of MCC begins with a clinical examination of the skin and lymph nodes. Following, definitive diagnosis of Merkel cell carcinoma (MCC) requires examination of biopsy tissue to identify its histopathologic features. An ideal biopsy specimen is either a punch biopsy or a full-thickness incisional biopsy of the skin including full-thickness dermis and subcutaneous fat. On light microscopy, MCC shows basaloid tumor nests with neuroendocrine features ("salt and pepper" chromatin, scarce cytoplasm, and brisk mitotic activity). In addition to standard examination under light microscopy, immunohistochemistry (IHC) is also generally required to differentiate MCC from other morphologically similar tumors such as small cell lung cancer, the small cell variant of melanoma, various cutaneous leukemic/lymphoid neoplasms, and Ewing's sarcoma. Similarly, most experts recommend longitudinal imaging of the chest, typically a CT scan, to rule out that the possibility that the skin lesion is a skin metastasis of an underlying small cell carcinoma of the lung. Once an MCC diagnosis is made, a sentinel lymph node biopsy is recommended as a part of the staging work-up needed to determine prognosis and subsequent treatment options.

[EX A]: Diagnosis of MCC begins with a clinical examination of the skin and lymph nodes

[EX Q]: Question: What age was John McCormack the year that DGOS was founded? Passage:The Dublin Grand Opera Society (DGOS) was founded in 1941 by Captain (later Colonel) William O'Kelly and a group of opera enthusiasts with John McCormack as its patron. The shows were cast with local singers and a volunteer chorus. Initially the music was provided by the orchestra of the Irish Army music school, and later by the Radio Eireann Symphony Orchestra. The Society put on two one-week seasons of opera throughout the years of World War II. After the war ended the DGOS presented performances by European opera companies such as the Opera-Comique, Hamburg Opera and the Netherlands Opera. From the mid 1950s to 1966, the Society, concentrated on Italian opera with the help of sponsorship from the Italian government. During that time numerous Italian stars and rising stars of the day appeared there, including Luciano Pavarotti who sang in Rigoletto, La traviata, and La boheme. The Italian sponsorship ended in 1966, but the Arts Council of Ireland and the Bord Failte (Ireland's tourist board) continued to provide guarantees for any financial losses. New opera companies were brought in, including the Romanian National Opera and the Prague National Theatre.

[EX A]: The Dublin Grand Opera Society (DGOS) was founded in 1941 by Captain (later Colonel) William O'Kelly and a group of opera enthusiasts with John McCormack as its patron

[EX Q]: Question: What team came in second in the year that Zenit won their first Russian Premier League title? Passage:Under Dutch manager Dick Advocaat, Denisov blossomed as a player, developing into an advanced midfield role behind Andrey Arshavin and Aleksandr Kerzhakov, becoming an influential member of the Zenit squad that won their first Russian Premier League title in 2007. On 3 April 2008, Denisov scored Zenit's fourth goal in their 41 first leg defeat of Bayer Leverkusen in the quarter-finals of the UEFA Cup match at the BayArena. Denisov's performances helped Zenit reach the final against Scottish side Rangers on 15 May, after defeating Bayern Munich 51 on aggregate in the semi-finals. In the final, Denisov played the full ninety minutes and opened the scoring in the 72nd minute after being played in by winger Andrei Arshavin. Zenit went on to win the match 20 and lift the UEFA Cup for the first time in their history. In the resulting UEFA Super Cup, Denisov played the full ninety again, assisting Pavel Pogrebnyak's headed goal as Zenit upset English heavyweight Manchester United 21 on 29 August 2008.

[EX A]:
Under Dutch manager Dick Advocaat, Denisov blossomed as a player, developing into an advanced midfield role behind Andrey Arshavin and Aleksandr Kerzhakov, becoming an influential member of the Zenit squad that won their first Russian Premier League title in 2007