Q: A catalytic converter is an exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction (an oxidation and a reduction reaction). Catalytic converters are usually used with internal combustion engines fueled by either gasoline or diesel--including lean-burn engines as well as kerosene heaters and stoves.
Can we conclude that is there a catalytic converter on a diesel?
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A: yes
To provide a better interchange with the Richmond branch of the District line, Piccadilly line trains began stopping at Turnham Green station in the early mornings (from the first train until 06:50 Monday to Saturday, 07:45 on Sunday) and late evenings (from 22:30 until the last train) only from 23 June 1963. During the rest of the day they run non-stop through the station as before. Local residents have been campaigning for more Piccadilly line trains to stop at Turnham Green with trains only stopping in the event of delays to the District line whereby large numbers of passengers are left waiting on the platform or occasionally while scheduled maintenance work is carried out.
does the piccadilly line stop at turnham green on sundays?
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Answer: yes
The following September, the show's host, John Walsh, announced that it would resume later that year on the cable network Lifetime. After a brief run on Lifetime, however, on March 28, 2013 the show was canceled again. This was reportedly due to low ratings and the level of royalty payments to Fox which holds the trademark and copyright. It was succeeded by John Walsh Investigates, a one-off special on Lifetime.

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does america's most wanted still come on?

A: no
Problem: Text: The video begins with an aerial shot of a block in Los Angeles, and clips of radio broadcasts are heard with disc jockeys stating that U2 is planning on performing a concert downtown and expecting crowds of 30,000 people. Police show up to the set and inform the band's crew of the security issue that the film shoot is causing, due to the large number of people who are coming to watch the performance. Two minutes into the video, U2 are seen on the roof of a liquor store at the corner of 7th St. and S. Main St., and perform ''Where the Streets Have No Name'' to a large crowd of people standing in the streets surrounding the building. Towards the end of the song, the police tell the crew that the performance is about to be shut down, and eventually police walk onto the roof while the crowd are booing the police.

Question: did u2 really play on a roof in la?

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A: yes
IN: Is it true that does todd die in fox and the hound?

With the bear gone, a bewildered Copper approaches Tod as he lies exhausted near the bank of a waterfall-created lake. When Slade appears, Copper positions himself in front of Tod to prevent Slade from shooting him, refusing to move away. Slade lowers his gun and leaves with Copper. Tod and Copper share one last smile before parting. At home, Tweed nurses Slade back to health while the dogs rest. Copper, before resting, smiles as he remembers the day when he first met Tod. On a hill, Vixey joins Tod as they look down on the homes of Slade and Tweed.

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OUT: no
Air Force One is the official air traffic control call sign for a United States Air Force aircraft carrying the President of the United States. In common parlance the term describes those Air Force aircraft designed, built, and used to transport the president. The presidential aircraft is a prominent symbol of the American presidency and its power.

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is air force one any plane the president is on?

A:
yes