Q: The Kirby Company is a manufacturer of vacuum cleaners and home cleaning accessories, based in Cleveland, Ohio, United States. It is a division of The Scott Fetzer Company (also known as Scott & Fetzer) which in turn is part of Berkshire Hathaway. Dealers are located in over 50 countries throughout the world. Kirby's products are only sold via in-home door-to-door demonstrations and the company is a member of the Direct Selling Association. All of the vacuum cleaners are built in either Ohio or Texas.
Can we conclude that does kirby vacuum still sell door to door?
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- no
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A: yes
A concentrated solution of this strong electrolyte has a lower vapor pressure than that of pure water at the same temperature. Strong acids, strong bases and soluble ionic salts that are not weak acids or weak bases are strong electrolytes.
is every strong electrolyte also a strong acid?
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- yes
+++++
Answer: no
The winter solstice (or hibernal solstice), also known as midwinter, is an astronomical phenomenon marking the day with the shortest period of daylight and the longest night of the year. In the Northern Hemisphere this is the December solstice and in the Southern Hemisphere this is the June solstice.

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- yes

is the winter solstice the shortest day of the year?

A: yes
Problem: Text: The primitive Liphistiidae, the ''trapdoor spiders'' of the family Ctenizidae and many tarantulas are ambush predators that lurk in burrows, often closed by trapdoors and often surrounded by networks of silk threads that alert these spiders to the presence of prey. Other ambush predators do without such aids, including many crab spiders, and a few species that prey on bees, which see ultraviolet, can adjust their ultraviolet reflectance to match the flowers in which they are lurking. Wolf spiders, jumping spiders, fishing spiders and some crab spiders capture prey by chasing it, and rely mainly on vision to locate prey.

Question: is there such a thing as a crab spider?

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- yes
A: yes
IN: Is it true that is london has fallen a sequel to another movie?

London Has Fallen is a 2016 American action thriller film directed by Babak Najafi and written by Creighton Rothenberger, Katrin Benedikt, Chad St. John and Christian Gudegast. It is a sequel to Antoine Fuqua's 2013 film Olympus Has Fallen and stars Gerard Butler, Aaron Eckhart and Morgan Freeman, with Alon Moni Aboutboul, Angela Bassett, Robert Forster, Jackie Earle Haley, Melissa Leo, Radha Mitchell, Sean O'Bryan, Waleed Zuaiter and Charlotte Riley in supporting roles.

OPTIONS:
- no
- yes

OUT: yes
Q: The Flintstones is a 1994 American buddy comedy film directed by Brian Levant and written by Tom S. Parker, Jim Jennewein, and Steven E. de Souza. It is a live-action adaptation of the 1960-66 animated television series of the same name. The film stars John Goodman as Fred Flintstone, Rick Moranis as Barney Rubble, Elizabeth Perkins as Wilma Flintstone, and Rosie O'Donnell as Betty Rubble, along with Kyle MacLachlan as a villainous executive-vice president of Fred's company, Halle Berry as his seductive secretary (named after a famous actress), and Elizabeth Taylor (in her final theatrical film appearance), as Pearl Slaghoople, Wilma's mother. The B-52's (as The BC-52's in the film) performed their version of the cartoon's theme song.
Can we conclude that were the olsen twins in the flintstones movie?
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- no
- yes
A:
no