In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: In the opening scene, San Francisco socialite Joyce Ramsey expresses concern about the working-class background of her daughter Martha's boyfriend Phil, and her husband David, tired of his opportunistic wife's social ambitions, asks her for a divorce and moves out, prompting her to look back on their marriage.
Via a flashback, we learn about the couple's humble beginnings and discover how they worked their way into the world of the nouveau riche. David is a Santa Rosa attorney with no clients, working on construction jobs with his law partner Robert Townsend to support his bride, who serves as the struggling firm's secretary. Finding herself pregnant, Joyce schemes to land Swanson, a former factory worker with a valuable steel-making patent, as a client. She succeeds at getting him to hire David alone, and when her plot eventually is discovered, Robert quits. David is furious with his wife, but she placates him by convincing him her sole intent was to help him and their unborn child.
Back in the present, Joyce is forced to admit to her daughters their father has left her when a society columnist questions his move. She learns from a friend David has been seen with another woman and hires a private detective to investigate.
Another flashback, and David, now an executive in Swanson's company, announces he has been transferred to San Francisco but wants to live in the suburbs. Joyce, longing for the excitement of city living, changes his mind. Eventually she meets Emily Hedges, and the two, bonded by their social-climbing aspirations, become close friends. An additional flashback which occurs in the not-so-distant past reveals Robert Townsend, in desperate need of $15,000, arrives at the Ramsey home to request a loan, and Joyce tells him David is away on business and she is unable to help him. Her husband learns of her lie and comes to his former partner's aid, accusing Joyce of being callous.
Who is the child of the couple with humble beginnings?

Passage: The Willamette River ( (listen) wil-AM-it) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is 187 miles (301 km) long, lying entirely in northwestern Oregon in the United States. Flowing northward between the Oregon Coast Range and the Cascade Range, the river and its tributaries form the Willamette Valley, a basin that contains two-thirds of Oregon's population, including the state capital, Salem, and the state's largest city, Portland, which surrounds the Willamette's mouth at the Columbia.
Originally created by plate tectonics about 35 million years ago and subsequently altered by volcanism and erosion, the river's drainage basin was significantly modified by the Missoula Floods at the end of the most recent ice age. Humans began living in the watershed over 10,000 years ago. There were once many tribal villages along the lower river and in the area around its mouth on the Columbia. Indigenous peoples lived throughout the upper reaches of the basin as well.
Rich with sediments deposited by flooding and fed by prolific rainfall on the western side of the Cascades, the Willamette Valley is one of the most fertile agricultural regions in North America, and was thus the destination of many 19th-century pioneers traveling west along the Oregon Trail. The river was an important transportation route in the 19th century, although Willamette Falls, just upstream from Portland, was a major barrier to boat traffic. In the 21st century, major highways follow the river, and roads cross it on more than 50 bridges.
Since 1900, more than 15 large dams and many smaller ones have been built in the Willamette's drainage basin, 13 of which are operated by the U.S. Army Corps of Engineers (USACE). The dams are used primarily to produce hydroelectricity, to maintain reservoirs for recreation, and to prevent flooding. The river and its tributaries support 60 fish species, including many species of salmon and trout; this is despite the dams, other alterations, and pollution (especially on the river's lower reaches). Part of the Willamette Floodplain was established as a National Natural Landmark in 1987 and the river was named as one of 14 American Heritage Rivers in 1998.
What organization operates 13 of the dams built in the river that is a major tributary of the Columbia river?

Passage: The top employer in the city is the city government itself, employing 5.3% (25,000+ people) of the city's population, followed by UCSF with over 22,000 employees. Third—at 1.8% (8,500+ people)—is California Pacific Medical Center, the largest private-sector employer. Small businesses with fewer than 10 employees and self-employed firms make up 85% of city establishments, and the number of San Franciscans employed by firms of more than 1,000 employees has fallen by half since 1977. The growth of national big box and formula retail chains into the city has been made intentionally difficult by political and civic consensus. In an effort to buoy small privately owned businesses in San Francisco and preserve the unique retail personality of the city, the Small Business Commission started a publicity campaign in 2004 to keep a larger share of retail dollars in the local economy, and the Board of Supervisors has used the planning code to limit the neighborhoods where formula retail establishments can set up shop, an effort affirmed by San Francisco voters. However, by 2016, San Francisco was rated low by small businesses in a Business Friendliness Survey.Like many U.S. cities, San Francisco once had a significant manufacturing sector employing nearly 60,000 workers in 1969, but nearly all production left for cheaper locations by the 1980s. As of 2014, San Francisco has seen a small resurgence in manufacturing, with more than 4,000 manufacturing jobs across 500 companies, doubling since 2011. The city's largest manufacturing employer is Anchor Brewing Company, and the largest by revenue is Timbuk2.
Who is San Francisco's top employeer?