Extract the answer to the question from the following context. Question: Who could not reunite with their spouses? Context: Chinese men entered the United States as laborers, primarily on the West Coast and in western territories. Following the Reconstruction era, as blacks set up independent farms, white planters imported Chinese laborers to satisfy their need for labor. In 1882, the Chinese Exclusion Act was passed, and Chinese workers who chose to stay in the U.S. were unable to have their wives join them. In the South, some Chinese married into the black and mulatto communities, as generally discrimination meant they did not take white spouses. They rapidly left working as laborers, and set up groceries in small towns throughout the South. They worked to get their children educated and socially mobile.
----
Answer: Chinese workers who chose to stay in the U.S


Extract the answer to the question from the following context. Question: What action did Jones take? Context: Season 11 premiered on January 18, 2012. On February 23, it was announced that one more finalist would join the Top 24 making it the Top 25, and that was Jermaine Jones. However, on March 14, Jones was disqualified in 12th place for concealing arrests and outstanding warrants. Jones denied the accusation that he concealed his arrests.
----
Answer: denied the accusation that he concealed his arrests


Extract the answer to the question from the following context. Question: Portugal's economy is centered on what related to financial transactions? Context: Since the Carnation Revolution of 1974, which culminated in the end of one of Portugal's most notable phases of economic expansion (that started in the 1960s), a significant change has occurred in the nation's annual economic growth.[citation needed] After the turmoil of the 1974 revolution and the PREC period, Portugal tried to adapt to a changing modern global economy, a process that continues in 2013. Since the 1990s, Portugal's public consumption-based economic development model has been slowly changing to a system that is focused on exports, private investment and the development of the high-tech sector. Consequently, business services have overtaken more traditional industries such as textiles, clothing, footwear and cork (Portugal is the world's leading cork producer), wood products and beverages.
----
Answer:
private investment