Passage: The Clean Air Act (42 U.S.C. 7401) is a United States federal law designed to control air pollution on a national level. It is one of the United States' first and most influential modern environmental laws, and one of the most comprehensive air quality laws in the world. As with many other major U.S. federal environmental statutes, it is administered by the U.S. Environmental Protection Agency (EPA), in coordination with state, local, and tribal governments. Its implementing regulations are codified at 40 C.F.R. Subchapter C, Parts 50-97.

Question: Based on this passage, the clean air act requires this agency to regulate environmental policies? Let's do a good job answering this.
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Stream of consciousness: To answer the above question, the relevant sentence is: As with many other major U.S. federal environmental statutes, it is administered by the U.S. Environmental Protection Agency (EPA), in coordination with state, local, and tribal governments.... The answer is the U.S. Environmental Protection Agency ( EPA ).

Passage: "Have n't Met You Yet" is the first single from Canadian singer Michael Buble's fourth album, Crazy Love, released on August 31, 2009. According to Buble, the single and its official music video are "about everyone's dream of finding a relationship and love." Buble co-wrote "Have n't Met You Yet" with Alan Chang and Amy Foster-Gilles, and dedicated it to his then fiancee and now wife, Luisana Lopilato (who appears as his love interest in the music video).

Question: Based on this passage, who is the girl in haven met you yet? Let's do a good job answering this.
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Stream of consciousness: This is the relevant information: Buble co-wrote "Have n't Met You Yet" with Alan Chang and Amy Foster-Gilles, and dedicated it to his then fiancee and now wife, Luisana Lopilato (who appears as his love interest in the music video).... The answer is Luisana Lopilato.

The Treaty of Guadalupe Hidalgo (Tratado de Guadalupe Hidalgo in Spanish), officially titled the Treaty of Peace, Friendship, Limits and Settlement between the United States of America and the Mexican Republic, is the peace treaty signed on February 2, 1848, in the Villa de Guadalupe Hidalgo (now a neighborhood of Mexico City) between the United States and Mexico that ended the Mexican -- American War (1846 -- 1848). The treaty came into force on July 4, 1848.

Answer this question based on the passage: when did the treaty of guadalupe hidalgo happen? Let's do a good job answering this.
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Stream of consciousness: The relevant information is: The treaty came into force on July 4, 1848.... The answer is July 4 , 1848.