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.

Ex Input:
Passage: The geography and ecology of the Everglades involve the complex elements affecting the natural environment throughout the southern region of the U.S. state of Florida. Before drainage, the Everglades were an interwoven mesh of marshes and prairies covering 4,000 square miles (10,000 km2). The Everglades is simultaneously a vast watershed that has historically extended from Lake Okeechobee 100 miles (160 km) south to Florida Bay (around one-third of the southern Florida peninsula), and many interconnected ecosystems within a geographic boundary. It is such a unique meeting of water, land, and climate that the use of either singular or plural to refer to the Everglades is appropriate. When Marjory Stoneman Douglas wrote her definitive description of the region in 1947, she used the metaphor "River of Grass" to explain the blending of water and plant life.
Although sawgrass and sloughs are the enduring geographical icons of the Everglades, other ecosystems are just as vital, and the borders marking them are subtle or nonexistent. Pinelands and tropical hardwood hammocks are located throughout the sloughs; the trees, rooted in soil inches above the peat, marl, or water, support a variety of wildlife. The oldest and tallest trees are cypresses, whose roots are specially adapted to grow underwater for months at a time. The Big Cypress Swamp is well known for its 500-year-old cypresses, though cypress domes can appear throughout the Everglades. As the fresh water from Lake Okeechobee makes its way to Florida Bay, it meets salt water from the Gulf of Mexico; mangrove forests grow in this transitional zone, providing nursery and nesting conditions for many species of birds, fish, and invertebrates. The marine environment of Florida Bay is also considered part of the Everglades because its sea grasses and aquatic life are attracted to the constant discharge of fresh water.
These ecological systems are always changing due to environmental factors. Geographic features such as the Western Flatwoods, Eastern Flatwoods, and the Atlantic Coastal Ridge affect drainage patterns. Geologic elements, climate, and the frequency of storms and fire are formative processes for the Everglades. They help to sustain and transform the ecosystems in the Shark River Valley, Big Cypress Swamp, coastal areas and mangrove forests. Ecosystems have been described as both fragile and resilient. Minor fluctuations in water levels have far-reaching consequences for many plant and animal species, and the system cycles and pulses with each change. 
Question: What type of system does minor fluctuations in water levels have far-reaching consequences for?

Ex Output:
Ecosystems.


Ex Input:
Passage: Seattle is a charter city, with a mayor–council form of government. From 1911 to 2013, Seattle's nine city councillors were elected at large, rather than by geographic subdivisions. For the 2015 election, this changed to a hybrid system of seven district members and two at-large members as a result of a ballot measure passed on November 5, 2013. The only other elected offices are the city attorney and Municipal Court judges. All city offices are officially non-partisan.Like some other parts of the United States, government and laws are also run by a series of ballot initiatives (allowing citizens to pass or reject laws), referenda (allowing citizens to approve or reject legislation already passed), and propositions (allowing specific government agencies to propose new laws or tax increases directly to the people).
Jenny Durkan was elected as mayor in the 2017 mayoral election and took office on November 28, 2017. The mayor's office also includes two deputy mayors, appointed to advise the mayor on policies; As of 2017, the city's deputy mayors are Michael Fong and Shefali Ranganathan.Seattle's political culture is very liberal and progressive for the United States, with over 80% of the population voting for the Democratic Party. All precincts in Seattle voted for Democratic Party candidate Barack Obama in the 2012 presidential election. In partisan elections for the Washington State Legislature and United States Congress, nearly all elections are won by Democrats. Although local elections are nonpartisan, most of the city's elected officials are known to be Democrats.
In 1926, Seattle became the first major American city to elect a female mayor, Bertha Knight Landes. It has also elected an openly gay mayor, Ed Murray, and a third-party socialist councillor, Kshama Sawant. For the first time in United States history, an openly gay black woman was elected to public office when Sherry Harris was elected as a Seattle city councillor in 1991. The majority of the city council is female.Federally, Seattle is split between two congressional districts. Most of the city is in Washington's 7th congressional district, represented by Democrat Pramila Jayapal, the first Indian-American woman elected to Congress. She succeeded 28-year incumbent and fellow Democrat Jim McDermott. Part of southwestern Seattle is in the 9th District, represented by Democrat Adam Smith. 
Question: What is the full name of the representative of the 9th congressional district that includes the city that elected Michael Fong and Shefali Ranganathan as deputy mayors in 2017?

Ex Output:
Adam Smith.


Ex Input:
Passage: According to Rolling Stone, Marquee Moon is a post-punk album, while Jason Heller from The A.V. Club described it as "elegantly jagged" art punk. Robert Christgau regarded it as more of a rock record because of Television's formal and technical abilities as musicians: "It wasn't punk. Its intensity wasn't manic; it didn't come in spurts." Both sides of the album begin with three shorter, hook-driven songs, which Stylus Magazine's Evan Chakroff said veer between progressive rock and post-punk styles. The title track and "Torn Curtain" are longer and more jam-oriented. "As peculiar as it sounds, I've always thought that we were a pop band", Verlaine later told Select. "You know, I always thought Marquee Moon was a bunch of cool singles. And then I'd realise, Christ, [the title track] is ten minutes long. With two guitar solos." As Tom Moon observed, Verlaine's singing avoids the "cursory punk snarl" while the band's music demonstrates "extended instrumental sections, impenetrable moods" (as on "Torn Curtain") and historical rock influences like Chuck Berry and the early music of the Rolling Stones (as on "Friction").Verlaine and Lloyd's guitar parts on the album are interplayed around the rhythm section's drum hits and basslines. Their dual playing draws on 1960s rock and avant-garde jazz styles, abandoning the layered power chords of contemporary punk rock in favor of melodic lines and counter-melodies. Verlaine's guitar establishes the song's rhythmic phrase, against which Lloyd is heard playing dissonant melodies. Lloyd had learned to notate his solos by the time they recorded Marquee Moon, allowing him to develop his solo for a song from introduction to variation and resolution. Some songs have the two guitarists trading rhythmic and melodic lines several times while producing tension. "There weren't many bands where the two guitars played rhythm and melody back and forth, like a jigsaw puzzle", Lloyd said.Most of the solos on Marquee Moon follow a pattern wherein Verlaine runs up a major scale but regresses slightly after each step. On "See No Evil", he solos through a full octave before playing a blues-influenced riff, and on the title track, he is heard playing in a Mixolydian mode and lowering the seventh by half a step. "Friction" opens with Lloyd playing octaves before Verlaine's ringing harmonics and series of descending scales. 
Question: What two things do some songs have two guitars trading back and forth like a jigsaw puzzle?

Ex Output:

rhythm.