Input: Article: The most familiar, and historically the oldest, types of glass are "silicate glasses" based on the chemical compound silica (silicon dioxide, or quartz), the primary constituent of sand. The term glass, in popular usage, is often used to refer only to this type of material, which is familiar from use as window glass and in glass bottles. Of the many silica-based glasses that exist, ordinary glazing and container glass is formed from a specific type called soda-lime glass, composed of approximately 75% silicon dioxide (SiO2), sodium oxide (Na2O) from sodium carbonate (Na2CO3), calcium oxide, also called lime (CaO), and several minor additives. A very clear and durable quartz glass can be made from pure silica, but the high melting point and very narrow glass transition of quartz make glassblowing and hot working difficult. In glasses like soda lime, the compounds added to quartz are used to lower the melting temperature and improve workability, at a cost in the toughness, thermal stability, and optical transmittance.

Now answer this question: What kind of glass are containers made from?

Output: soda-lime glass

Article: CSL, one of the world's top five biotech companies, and Sigma Pharmaceuticals have their headquarters in Melbourne. The two are the largest listed Australian pharmaceutical companies. Melbourne has an important ICT industry that employs over 60,000 people (one third of Australia's ICT workforce), with a turnover of $19.8 billion and export revenues of $615 million. In addition, tourism also plays an important role in Melbourne's economy, with about 7.6 million domestic visitors and 1.88 million international visitors in 2004. In 2008, Melbourne overtook Sydney with the amount of money that domestic tourists spent in the city, accounting for around $15.8 billion annually. Melbourne has been attracting an increasing share of domestic and international conference markets. Construction began in February 2006 of a $1 billion 5000-seat international convention centre, Hilton Hotel and commercial precinct adjacent to the Melbourne Exhibition and Convention Centre to link development along the Yarra River with the Southbank precinct and multibillion-dollar Docklands redevelopment.

Question: Domestic visitors spend about how much money in the city of Melbourne annually?
Ans: $15.8 billion

Here is a question about this article: The division between the two is often not clear and is often politicized in disagreements within a government over a treaty, since a non-self-executing treaty cannot be acted on without the proper change in domestic law. If a treaty requires implementing legislation, a state may be in default of its obligations by the failure of its legislature to pass the necessary domestic laws.
What is the answer to this question: A treaty may be politicized due to disagreements within a party because the division between a self-executing treaty and a non-self-executing treaty can often be described as what?
****
So... not clear

The problem: Answer a question about this article:
In 1997, the mammals were comprehensively revised by Malcolm C. McKenna and Susan K. Bell, which has resulted in the McKenna/Bell classification. Their 1997 book, Classification of Mammals above the Species Level, is the most comprehensive work to date on the systematics, relationships, and occurrences of all mammal taxa, living and extinct, down through the rank of genus, though recent molecular genetic data challenge several of the higher level groupings. The authors worked together as paleontologists at the American Museum of Natural History, New York. McKenna inherited the project from Simpson and, with Bell, constructed a completely updated hierarchical system, covering living and extinct taxa that reflects the historical genealogy of Mammalia.
Where did the two authors work together as paleontologist?
****
The answer: American Museum of Natural History

Problem: Please answer a question about the following article about John Kerry:
Most analyses place Kerry's voting record on the left within the Senate Democratic caucus. During the 2004 presidential election he was portrayed as a staunch liberal by conservative groups and the Bush campaign, who often noted that in 2003 Kerry was rated the National Journal's top Senate liberal. However, that rating was based only upon voting on legislation within that past year. In fact, in terms of career voting records, the National Journal found that Kerry is the 11th most liberal member of the Senate. Most analyses find that Kerry is at least slightly more liberal than the typical Democratic Senator. Kerry has stated that he opposes privatizing Social Security, supports abortion rights for adult women and minors, supports same-sex marriage, opposes capital punishment except for terrorists, supports most gun control laws, and is generally a supporter of trade agreements. Kerry supported the North American Free Trade Agreement and Most Favored Nation status for China, but opposed the Central American Free Trade Agreement.[citation needed]
What was Kerry's actual career voting rank for 'liberalness'?
A: 11th most liberal

Question: Read this and answer the question

According to mtDNA studies by Holden (2005) and Richards et al. (2006), a significant proportion of the maternal lineages of Somalis consists of the M1 haplogroup. This mitochondrial clade is common among Ethiopians and North Africans, particularly Egyptians and Algerians. M1 is believed to have originated in Asia, where its parent M clade represents the majority of mtDNA lineages. This haplogroup is also thought to possibly correlate with the Afro-Asiatic language family:

When did Richards publish his mtDNA research?
Answer:
2006