In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Input: Consider Input: Passage: Young couple Richard and Alex want what everyone wants: career, kids and a gorgeous home in L.A. But it all seems so impossible until they crash a party at Edendale, their dream house, owned by Jake and Chloe, who are hosting a fundraiser for the orphans of Bhutan. Richard and Alex hit it off with the hosts, and while house-sitting for them, discover a secret room filled with a million in cash.
When Jake and Chloe die in a "rickshaw accident" overseas, Richard and Alex worry the cash might not go to the orphans, so they break into Edendale and take the money. They earnestly try to donate the money to Jigme Wangchuck, the deputy ambassador of the Embassy of Bhutan, and his assistant Priti Khagda. But the Embassy officials, thinking they're being set up, refuse the money. So Richard and Alex deposit the cash, find another charity, and end up writing a check to "The Porpoise Purpose," headed by Stuart Hendron and his assistant Olivier.
Just then, they learn from their Realtor, Logan, (Tom Lenk), that Edendale is now on the market. They really want it but have given the money to the porpoise charityso they stop payment on the check and use the money as down payment on the house, intending to repay the charity by taking out a second mortgage once escrow closes.
Question: What is the name of the charity Richard and Alex stop payment on their check and use the money for a down payment on the house??

Output: The Porpoise Purpose,.

Input: Consider Input: Passage: In 1891 the Great Northern Railway crossed the Continental Divide at Marias Pass 5,213 feet (1,589 m), which is along the southern boundary of the park. In an effort to stimulate use of the railroad, the Great Northern soon advertised the splendors of the region to the public. The company lobbied the United States Congress. In 1897 the park was designated as a forest preserve. Under the forest designation, mining was still allowed but was not commercially successful. Meanwhile, proponents of protecting the region kept up their efforts. In 1910, under the influence of the Boone and Crockett Club, spearheaded by Club members George Bird Grinnell, Henry L. Stimson, and the railroad, a bill was introduced into the U.S. Congress which redesignated the region from a forest reserve to a national park. This bill was signed into law by President William Howard Taft on May 11, 1910. In 1910 George Bird Grinnell wrote, "This Park, the country owes to the Boone and Crockett Club, whose members discovered the region, suggested it being set aside, caused the bill to be introduced into congress and awakened interest in it all over the country".
From May until August 1910, the forest reserve supervisor, Fremont Nathan Haines, managed the park's resources as the first acting superintendent. In August 1910, William Logan was appointed the park's first superintendent. While the designation of the forest reserve confirmed the traditional usage rights of the Blackfeet, the enabling legislation of the national park does not mention the guarantees to the Native Americans. It is the position of the United States government that with the special designation as a National Park the mountains ceded their multi-purpose public land status and the former rights ceased to exist as it was confirmed by the Court of Claims in 1935. Some Blackfeet held that their traditional usage rights still exist de jure. In the 1890s, armed standoffs were avoided narrowly several times.The Great Northern Railway, under the supervision of president Louis W. Hill, built a number of hotels and chalets throughout the park in the 1910s to promote tourism. These buildings, constructed and operated by a Great Northern subsidiary called the Glacier Park Company, were modeled on Swiss architecture as part of Hill's plan to portray Glacier as "America's Switzerland". Hill was especially interested in sponsoring artists to come to the park, building tourist lodges that displayed their work. His hotels in the park never made a profit but they attracted thousands of visitors who came via the Great Northern. Vacationers commonly took pack trips on horseback between the lodges or utilized the seasonal stagecoach routes to gain access to the Many Glacier area in the northeast.
Question: What was the full name of the Great Northern Railway president?

Output: Louis W. Hill.

Input: Consider Input: Passage: By the early 20th century, major river-control projects had begun to take place. Levees were constructed along the river in most urban areas, and Portland built concrete walls to protect its downtown sector. In the following decades, many large dams were built on Cascade Range tributaries of the Willamette. The Army Corps of Engineers operates 13 such dams, which affect flows from about 40 percent of the basin. Most of them do not have fish ladders.With development in and near the river came increased pollution. By the late 1930s, efforts to stem the pollution led to formation of a state sanitary board to oversee modest cleanup efforts. In the 1960s, Oregon Governor Tom McCall led a push for stronger pollution controls on the Willamette. In this, he was encouraged by Robert (Bob) Straubthe state treasurer and future Oregon governor (1975)who first proposed a Willamette Greenway program during his 1966 gubernatorial campaign against McCall. The Oregon State Legislature established the program in 1967. Through it, state and local governments cooperated in creating or improving a system of parks, trails, and wildlife refuges along the river. In 1998, the Willamette became one of 14 rivers designated an American Heritage River by former U.S. President Bill Clinton. By 2007 the Greenway had grown to include more than 170 separate land parcels, including 10 state parks. Public uses of the river and land along its shores include camping, swimming, fishing, boating, hiking, bicycling, and wildlife viewing.In 2008, government agencies and the non-profit Willamette Riverkeeper organization designated the full length of the river as the Willamette River Water Trail. Four years later, the National Park Service added the Willamette water trailexpanded to 217 miles (349 km) to include some of the major tributariesto its list of national water trails. The water-trail system is meant to protect and restore waterways in the United States and to enhance recreation on and near them.A 1991 agreement between the City of Portland and the State of Oregon to dramatically reduce combined sewer overflows (CSOs) led to Portland's Big Pipe Project. The project, part of a related series of Portland CSO projects completed in late 2011 at a cost of $1.44 billion, separates the city's sanitary sewer lines from storm-water inputs that sometimes overwhelmed the combined system during heavy rains. When that occurred, some of the raw sewage in the system flowed into the river instead of into the city's wastewater treatment plant. The Big Pipe project and related work reduces CSO volume on the lower river by about 94 percent.In June 2014, Dean Hall became the first person to swim the entire length of the Willamette River. He swam 184 miles (296 km) from Eugene to the river mouth in 25 days.
Question: What year was the agreement that started the project that reduced CSO volume on the river by 94 percent started?
Output: 1991.