Extract the answer to the question from the following context. Question: Where might have the visitors gone to while in Atlantic city? Context: Atlantic City is considered as the "Gambling Capital of the East Coast," and currently has eight large casinos and several smaller ones. In 2011, New Jersey's casinos employed approximately 33,000 employees, had 28.5 million visitors, made $3.3 billion in gaming revenue, and paid $278 million in taxes. They are regulated by the New Jersey Casino Control Commission and the New Jersey Division of Gaming Enforcement.
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Answer: casinos


Extract the answer to the question from the following context. Question: What is the state of gas when trying to encourage conductivity? Context: While inert gas reduces filament evaporation, it also conducts heat from the filament, thereby cooling the filament and reducing efficiency. At constant pressure and temperature, the thermal conductivity of a gas depends upon the molecular weight of the gas and the cross sectional area of the gas molecules. Higher molecular weight gasses have lower thermal conductivity, because both the molecular weight is higher and also the cross sectional area is higher. Xenon gas improves efficiency because of its high molecular weight, but is also more expensive, so its use is limited to smaller lamps.
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Answer: inert


Extract the answer to the question from the following context. Question: What might have strengthened the structural integrity of the cathedrals in Gothic styles? Context: From the early 12th century, French builders developed the Gothic style, marked by the use of rib vaults, pointed arches, flying buttresses, and large stained glass windows. It was used mainly in churches and cathedrals, and continued in use until the 16th century in much of Europe. Classic examples of Gothic architecture include Chartres Cathedral and Reims Cathedral in France as well as Salisbury Cathedral in England. Stained glass became a crucial element in the design of churches, which continued to use extensive wall-paintings, now almost all lost.
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Answer:
the use of rib vaults