Problem: Please answer a question about the following article about Database:

XML databases are a type of structured document-oriented database that allows querying based on XML document attributes. XML databases are mostly used in enterprise database management, where XML is being used as the machine-to-machine data interoperability standard. XML database management systems include commercial software MarkLogic and Oracle Berkeley DB XML, and a free use software Clusterpoint Distributed XML/JSON Database. All are enterprise software database platforms and support industry standard ACID-compliant transaction processing with strong database consistency characteristics and high level of database security.
Where are XML databases frequently used?
A: enterprise database management


Question: Read this and answer the question

Anthocyanins tend to be the main polyphenolics in purple grapes whereas flavan-3-ols (i.e. catechins) are the more abundant phenolic in white varieties. Total phenolic content, a laboratory index of antioxidant strength, is higher in purple varieties due almost entirely to anthocyanin density in purple grape skin compared to absence of anthocyanins in white grape skin. It is these anthocyanins that are attracting the efforts of scientists to define their properties for human health. Phenolic content of grape skin varies with cultivar, soil composition, climate, geographic origin, and cultivation practices or exposure to diseases, such as fungal infections.

What content of a grapes skin can be affected by soil composition, climate, and cultivation practices? 
Answer: Phenolic content


Problem: The idea of Masonic brotherhood probably descends from a 16th-century legal definition of a brother as one who has taken an oath of mutual support to another. Accordingly, Masons swear at each degree to keep the contents of that degree secret, and to support and protect their brethren unless they have broken the law. In most Lodges the oath or obligation is taken on a Volume of Sacred Law, whichever book of divine revelation is appropriate to the religious beliefs of the individual brother (usually the Bible in the Anglo-American tradition). In Progressive continental Freemasonry, books other than scripture are permissible, a cause of rupture between Grand Lodges.
Masons swear to protect their brethren unless they what?
The answer is the following: have broken the law


In May 2014, prior to the launch of YouTube's subscription-based Music Key service, the independent music trade organization Worldwide Independent Network alleged that YouTube was using non-negotiable contracts with independent labels that were "undervalued" in comparison to other streaming services, and that YouTube would block all music content from labels who do not reach a deal to be included on the paid service. In a statement to the Financial Times in June 2014, Robert Kyncl confirmed that YouTube would block the content of labels who do not negotiate deals to be included in the paid service "to ensure that all content on the platform is governed by its new contractual terms." Stating that 90% of labels had reached deals, he went on to say that "while we wish that we had [a] 100% success rate, we understand that is not likely an achievable goal and therefore it is our responsibility to our users and the industry to launch the enhanced music experience." The Financial Times later reported that YouTube had reached an aggregate deal with Merlin Network—a trade group representing over 20,000 independent labels, for their inclusion in the service. However, YouTube itself has not confirmed the deal.
Why did youtube want to ensure only contractees music was played?
to launch the enhanced music experience


Input: New York City
Silicon Alley, centered in Manhattan, has evolved into a metonym for the sphere encompassing the New York City metropolitan region's high technology industries involving the Internet, new media, telecommunications, digital media, software development, biotechnology, game design, financial technology ("fintech"), and other fields within information technology that are supported by its entrepreneurship ecosystem and venture capital investments. In the first half of 2015, Silicon Alley generated over US$3.7 billion in venture capital investment across a broad spectrum of high technology enterprises, most based in Manhattan, with others in Brooklyn, Queens, and elsewhere in the region. High technology startup companies and employment are growing in New York City and the region, bolstered by the city's position in North America as the leading Internet hub and telecommunications center, including its vicinity to several transatlantic fiber optic trunk lines, New York's intellectual capital, and its extensive outdoor wireless connectivity. Verizon Communications, headquartered at 140 West Street in Lower Manhattan, was at the final stages in 2014 of completing a US$3 billion fiberoptic telecommunications upgrade throughout New York City. As of 2014, New York City hosted 300,000 employees in the tech sector.

Approximately how many tech sector jobs are in New York City?
Output: 300,000


Problem: Please answer a question about the following article about Child labour:
The term child labour can be misleading when it confuses harmful work with employment that may be beneficial to children. It can also ignore harmful work outside employment and any benefits children normally derive from their work. Domestic work is an example: all families but the rich must work at cleaning, cooking, caring, and more to maintain their homes. In most families in the world, this process extends to productive activities, especially herding and various types of agriculture, and to a variety of small family businesses. Where trading is a significant feature of social life, children can start trading in small items at an early age, often in the company of family members or of peers.
All but what type of children must learn to clean?
A:
rich