Please answer this: Extract the answer to the question from the following context. Question: what is the second group mentioned? Context: Much of Yale University's staff, including most maintenance staff, dining hall employees, and administrative staff, are unionized. Clerical and technical employees are represented by Local 34 of UNITE HERE and service and maintenance workers by Local 35 of the same international. Together with the Graduate Employees and Students Organization (GESO), an unrecognized union of graduate employees, Locals 34 and 35 make up the Federation of Hospital and University Employees. Also included in FHUE are the dietary workers at Yale-New Haven Hospital, who are members of 1199 SEIU. In addition to these unions, officers of the Yale University Police Department are members of the Yale Police Benevolent Association, which affiliated in 2005 with the Connecticut Organization for Public Safety Employees. Finally, Yale security officers voted to join the International Union of Security, Police and Fire Professionals of America in fall 2010 after the National Labor Relations Board ruled they could not join AFSCME; the Yale administration contested the election.
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Answer: maintenance staff

Please answer this: Extract the answer to the question from the following context. Question: Which happened first, Heitaro Nakajima developed an early digital audio recorder or became general manager of Sony's audio department? Context: Heitaro Nakajima, who developed an early digital audio recorder within Japan's national public broadcasting organization NHK in 1970, became general manager of Sony's audio department in 1971. His team developed a digital PCM adaptor audio tape recorder using a Betamax video recorder in 1973. After this, in 1974 the leap to storing digital audio on an optical disc was easily made. Sony first publicly demonstrated an optical digital audio disc in September 1976. A year later, in September 1977, Sony showed the press a 30 cm disc that could play 60 minutes of digital audio (44,100 Hz sampling rate and 16-bit resolution) using MFM modulation. In September 1978, the company demonstrated an optical digital audio disc with a 150-minute playing time, 44,056 Hz sampling rate, 16-bit linear resolution, and cross-interleaved error correction codespecifications similar to those later settled upon for the standard Compact Disc format in 1980. Technical details of Sony's digital audio disc were presented during the 62nd AES Convention, held on 1316 March 1979, in Brussels. Sony's AES technical paper was published on 1 March 1979. A week later, on 8 March, Philips publicly demonstrated a prototype of an optical digital audio disc at a press conference called "Philips Introduce Compact Disc" in Eindhoven, Netherlands.
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Answer: developed an early digital audio recorder

Please answer this: Extract the answer to the question from the following context. Question: Which of the following is not needed to reconstruct the conceptual level of the database: metadata, internal data structures or configuration settings? Context: Database storage is the container of the physical materialization of a database. It comprises the internal (physical) level in the database architecture. It also contains all the information needed (e.g., metadata, "data about the data", and internal data structures) to reconstruct the conceptual level and external level from the internal level when needed. Putting data into permanent storage is generally the responsibility of the database engine a.k.a. "storage engine". Though typically accessed by a DBMS through the underlying operating system (and often utilizing the operating systems' file systems as intermediates for storage layout), storage properties and configuration setting are extremely important for the efficient operation of the DBMS, and thus are closely maintained by database administrators. A DBMS, while in operation, always has its database residing in several types of storage (e.g., memory and external storage). The database data and the additional needed information, possibly in very large amounts, are coded into bits. Data typically reside in the storage in structures that look completely different from the way the data look in the conceptual and external levels, but in ways that attempt to optimize (the best possible) these levels' reconstruction when needed by users and programs, as well as for computing additional types of needed information from the data (e.g., when querying the database).
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Answer:
configuration setting