IN: Andrei Kivilev (20 September 1973 -- 12 March 2003) was a professional road bicycle racer from Taldykorgan, Kazakhstan. In March 2003, he crashed during the Paris--Nice race and subsequently died of his injuries. His death was the trigger for the UCI to implement the compulsory wearing of helmets in all endorsed races.
do tour de france riders have to wear helmets?

OUT: yes

IN: There are reports of stingers breaking off in wounds, but this may be rare. This would not be fatal to the stingray as it will be regrown at a rate of about 1.25 to 2 centimetres (0.49 to 0.79 in) per month (though with significant variations depending on the size of the stingray and the exact species). Contact with the stinger causes local trauma (from the cut itself), pain, swelling, and muscle cramps from the venom, and possible later infection from bacteria or fungi. Immediate injuries to humans include, but are not limited to: poisoning, punctures, severed arteries and veins, and occasionally death. Fatal stings are very rare, but can happen, infamously including Steve Irwin. In Irwin's case, the stinger penetrated his thoracic wall, causing massive trauma.
does the barb on a stingray grow back?

OUT: yes

IN: The celebration of Saint Andrew as a national festival is thought to originate from the reign of Malcolm III (1034--1093). It was thought that ritual slaughter of animals associated with Samhain was moved to this date, so as to assure enough animals were kept alive for winter. But it is only in more recent times that 30 November has been given national holiday status.
is st andrews day a holiday in scotland?

OUT: yes

IN: The Simmons Bedding Company is an American major manufacturer of mattresses and related bedding products, based in Atlanta, Georgia. The company was founded in 1870, and is one of the oldest companies of its kind in the United States. Simmons' flagship brand is Beautyrest. In addition to operating 18 manufacturing facilities in the United States and Puerto Rico, the company licenses its products internationally. According to a Simmons press release, net sales for 2005 were $855 million, and its revenue was $1.13 billion in 2007 and $1.228 billion in 2013. As of 2011, Simmons ranked in third place among U.S. mattress manufacturers, with a 15.7 percent market share. In 2012, Simmons and its sister company Serta International were acquired by American private equity company Advent International.
are simmons and serta owned by the same company?

OUT:
yes