input: Buy one, get one free

Economist Alex Tabarrok has argued that the success of this promotion lies in the fact that the price actually takes into account the fact that two items are being sold. The price of ''one'' is somewhat nominal and is typically raised when used as part of a buy one get one free deal. Whilst the cost per item is proportionately cheaper than if bought on its own, it is not actually half price.

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is 2 for 1 same as half price
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output: no
Question: Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. Originally known as Boulder Dam from 1933, it was officially renamed Hoover Dam, for President Herbert Hoover, by a joint resolution of Congress in 1947. is the hoover dam on the colorado river

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Answer: yes
IN: The Lexus ES (Japanese: ES, Rekusasu ES) is a series of compact, then mid-size car sold by Lexus since 1989. Six generations of the sedan have been introduced to date, each offering V6 engines and the front-engine, front-wheel-drive layout. The first five generations of the ES were built on the Toyota Camry platform, with the sixth generation more closely related to the Avalon. Manual transmissions were offered until 1993, a lower-displacement inline-four engine became an option in Asian markets in 2010, and a gasoline-electric hybrid version was introduced in 2012. The ES was Lexus' only front-wheel drive vehicle until 1998, when the related Lexus RX was introduced, and the sedan occupied the entry-level luxury car segment of the Lexus lineup in North America and other regions until the debut of the Lexus IS in 1999. The ES name stands for ''Executive Sedan''. However, some Lexus importers use the backronymic name, ''Elegant Sedan''.
is the lexus es 350 front wheel drive?

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OUT: yes
What's the best answer to this question: can ear mites from dogs get on humans?

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Answer: yes
Text: Ant-Man and the Wasp is an upcoming American superhero film based on the Marvel Comics characters Scott Lang / Ant-Man and Hope van Dyne / Wasp. Produced by Marvel Studios and distributed by Walt Disney Studios Motion Pictures, it is intended to be the sequel to 2015's Ant-Man, and the twentieth film in the Marvel Cinematic Universe (MCU). The film is directed by Peyton Reed and written by the writing teams of Chris McKenna and Erik Sommers, and Paul Rudd, Andrew Barrer and Gabriel Ferrari. It stars Rudd as Lang and Evangeline Lilly as Van Dyne, alongside Michael Pena, Walton Goggins, Bobby Cannavale, Judy Greer, Tip ''T.I.'' Harris, David Dastmalchian, Hannah John-Kamen, Abby Ryder Fortson, Randall Park, Michelle Pfeiffer, Laurence Fishburne, and Michael Douglas. In Ant-Man and the Wasp, the titular pair team up to embark on a new mission from Hank Pym.

Question: is there going to be an ant man 2 movie?

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Answer: yes
IN: Lead crystal glassware was formerly used to store and serve drinks, but due to the potential health risks of lead, this has become rare. One alternative material is crystal glass, in which barium oxide, zinc oxide, or potassium oxide are employed instead of lead oxide. Lead-free crystal has a similar refractive index to lead crystal, but it is lighter and it has less dispersive power.
is there such a thing as lead free crystal?

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OUT:
yes