Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.

Q: original question: Which tournament event has the competitions of [2009 World Championships in Athletics ‚Äì Women's javelin throw] ?
answer: women's javelin throw
answer type: Tournament event.
auxiliary information: The Women's Javelin Throw at the 2009 World Championships in Athletics will be held at the Olympic Stadium on August 16 and August 18. The event featured four athletes whose ability was so much better than the opposition that Mirko Jalava of the IAAF said it would be a "major surprise" should another athlete beat them to the podium. The Olympic champion and world record holder Barbora ≈†pot√°kov√°, and Beijing silver medallist Mariya Abakumova, had not matched their Olympic form of the previous year but remained strong contenders for the competition. The other two athletes came from the German team, which was headed by world-leader and two-time World medallist Christina Obergf√∂ll, as well as the veteran Steffi Nerius who won silver in 2003, 2005 and 2007. Osleidys Men√©ndez, Sunette Viljoen and Madara Palameika were the outside contenders. A modest qualifying round was highlighted by Abakumova's world-leading throw of 68.92 m, while German number three Linda Stahl and Slovenian Martina Ratej threw season's bests to qualify as the second and third best throwers. The first round saw the elimination of two of the season's top-six athletes, Palameika and Viljoen.

A: [2009 World Championships in Athletics ‚Äì Women's javelin throw] are competitions within which tournament event?
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Q: original question: Which chemical series is the element with greatest van der waals radius in along with [Oxygen]?
answer: period 2 element
answer type: Chemical Series.
auxiliary information: Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element and oxidizing agent that readily forms compounds with most elements. Photosynthesis releases oxygen, and respiration consumes oxygen. Changes in phosphate are related to changes in oxygen concentrations. Oxygen was discovered independently by Carl Wilhelm Scheele, in Uppsala, in 1773 or earlier, and Joseph Priestley in Wiltshire, in 1774, but Priestley is often given priority because his work was published first. The name oxygen was coined in 1777 by Antoine Lavoisier, whose experiments with oxygen helped to discredit the then-popular phlogiston theory of combustion and corrosion. Its name derives from the Greek roots ·ΩÄŒæœçœÇ oxys, "acid", literally "sharp", referring to the sour taste of acids and -Œ≥ŒµŒΩŒÆœÇ -genes, "producer", literally "begetter", because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition.

A: Which atomic number element in the chemical series that includes [Oxygen] has the great greatest van der waals radius?
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Q: original question: Which chemical elements are in the same periodic table block as [Nitrogen]?
answer: lead, polonium, ununtrium...
answer type: Chemical Element.
auxiliary information: Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen and at room temperature, it is a transparent, odorless diatomic gas. Nitrogen is a common element in the universe, estimated at about seventh in total abundance in the Milky Way and the Solar System. On Earth, the element forms about 78% of Earth's atmosphere and as such is the most abundant uncombined element. The element nitrogen was discovered as a separable component of air, by Scottish physician Daniel Rutherford, in 1772. Many industrially important compounds, such as ammonia, nitric acid, organic nitrates, and cyanides, contain nitrogen. The extremely strong triple bond in elemental nitrogen dominates nitrogen chemistry, causing difficulty for both organisms and industry in converting the N‚ÇÇ into useful compounds, but at the same time causing release of large amounts of often useful energy when the compounds burn, explode, or decay back into nitrogen gas. Synthetically-produced ammonia and nitrates are key industrial fertilizers and fertilizer nitrates are key pollutants in causing the eutrophication of water systems.

A:
What are the chemical elements in the same periodic table block as [Nitrogen]?
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