IN: Chicago, the third-largest city in the United States, is home to 1,315 completed high-rises, 44 of which stand taller than 600 feet (183 m). The tallest building in the city is the 110-story Willis Tower (formerly the Sears Tower), which rises 1,451 feet (442 m) in the Chicago Loop and was completed in 1974. Sears Tower was the tallest building in the world from its completion, and remained the tallest building in the United States until May 10, 2013 when it was overtaken by One World Trade Center in New York City. The second-, third- and fourth-tallest buildings in Chicago are the Trump International Hotel & Tower, the Aon Center and 875 North Michigan Avenue (formerly the John Hancock Center), respectively. Of the ten tallest buildings in the United States, four are located in Chicago. As of February 2013, the entire city had 105 buildings at least 500 feet (152 m) tall.
is the sears tower the same as the hancock building?

OPTIONS:
- no
- yes

OUT: no

IN: In England and Wales, ear cropping is illegal, and no dog with cropped ears can take part in any Kennel Club event (including agility and other non-conformation events). Tail docking is also illegal, except for a few working breeds; this exemption applies only when carried out by a registered veterinary surgeon.
is it illegal to crop a doberman's ears in the uk?

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- no
- yes

OUT: yes

IN: The federal government also issues a variety of other documents and cards which can be used to establish identity. Immigration and travel documents such as the Green Card or a visa can be used to prove identity and the right to work in the United States (if applicable). Trusted traveler cards are issued by US Customs and Border Protection to indicate participation in the NEXUS, SENTRI, or Global Entry programs used to facilitate expedited entry through customs. Within the marine trades (and supporting trades thereof), the Transportation Worker Identification Credential provides unescorted access to secured port facilitates.
can a green card be used as an id?

OPTIONS:
- no
- yes

OUT: yes

IN: The use of toxic chemicals as weapons dates back thousands of years, but the first large scale use of chemical weapons was during World War I. They were primarily used to demoralize, injure, and kill entrenched defenders, against whom the indiscriminate and generally very slow-moving or static nature of gas clouds would be most effective. The types of weapons employed ranged from disabling chemicals, such as tear gas, to lethal agents like phosgene, chlorine, and mustard gas. This chemical warfare was a major component of the first global war and first total war of the 20th century. The killing capacity of gas was limited, with about ninety thousand fatalities from a total of 1.3 million casualties caused by gas attacks. Gas was unlike most other weapons of the period because it was possible to develop countermeasures, such as gas masks. In the later stages of the war, as the use of gas increased, its overall effectiveness diminished. The widespread use of these agents of chemical warfare, and wartime advances in the composition of high explosives, gave rise to an occasionally expressed view of World War I as ''the chemist's war'' and also the era where weapons of mass destruction were created.
was there chemical warfare in world war 1?

OPTIONS:
- no
- yes

OUT:
yes