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.

Passage: Doug is a flight instructor and owner of a pilot school. He, his wife Abby and their two daughters, Lindsay and Amanda face serious financial problems, as they are near financial ruin, and need $300,000 to expand the pilot school.
Doug has to work hard and has hardly any time for his family, even arriving at home late on Christmas Eve. During the meal Doug receives a phone call from a lawyer who informs him that his parents are not his biological parents, but that he was adopted by an open adoption by them. The lawyer asks him to come to a meeting, where problems concerning his biological father are to be discussed.
The lawyer introduces him to his half sister, Delilah, who was disowned from their father. Her only interest is to have her father judged unfit in order to sell his property. The lawyer asks whether they want to look after the property and their father. If they would, they would also take responsibility of him. Doug decides to do so without asking Abby.
Question: What are the first names of the family that is facing serious financial problems?
Doug.

Passage: Three species of mangrove trees exist in the region: red (Rhizophora mangle), black (Avicennia germinans), and white (Laguncularia racemosa), although all are from different families. All have the same characteristics: they are tolerant of salt, brackish, and fresh water; they grow in oxygen-poor soil; and they can survive drastic water-level changes. Black and white mangroves excrete salt from under their leaves, and red mangroves filter the salinity of sea water. All species are integral to coastline protection during severe storms. Red mangroves, for example, have far-reaching roots that trap sediments. The trees not only stabilize coastlines, but add land as more sand and decaying vegetation is trapped in the root systems. All three mangroves also absorb the energy of waves and storm surges.
The estuaries act as fisheries for fry and nurseries for crustaceans. Shrimp, oysters, crabs, whelks, cockles, and snails thrive in these waters, as do primordial horseshoe crabs (Limulus polyphemus). The region supports a $59 million-a-year Tortugas pink shrimp (Farfantepenaeus duorarum) industry, and a $22 million-a-year stone crab (Menippe mercenaria) industry. Between 80 and 90 percent of species that are harvested commercially in Florida are born or spend time in the shallow waters near the Everglades. Oysters and mangroves work in tandem to build up the coastline. The sand around the coastline has minute white particles of quartz and fine shells. When currents are right, oysters grow in colonies or beds, and deposit their shells, reinforcing the bed. Mangrove seeds, called propagules, are full embryos and float in water until they reach a favorable location and take root, often on oyster beds. They shed skin and litter, ensuring other trees will not compete for space and nutrients.Mangroves also serve as excellent rookeries for birds. Wading birds, such as roseate spoonbills (Platalea ajaja), egrets, and tricolored herons (Egretta tricolor) use the mangroves as a nursery, due to the proximity of food sources and the protection offered from most prey. Thousands of birds can nest in the mangroves at once, making a noisy and messy colony, but their droppings fertilize the mangrove trees. Shorebirds like rails, terns and gulls; diving birds such as pelicans and grebes; and birds of prey such as ospreys, hawks and vultures are among the more than 100 species of birds that use Everglades mangrove trees to raise their young.
Question: What are the full scientific names of the three species of mangrove trees that exist in the Everglades?
Rhizophora mangle.

Passage: Sir Henry Joseph Wood (3 March 1869 19 August 1944) was an English conductor best known for his association with London's annual series of promenade concerts, known as the Proms. He conducted them for nearly half a century, introducing hundreds of new works to British audiences. After his death, the concerts were officially renamed in his honour as the "Henry Wood Promenade Concerts", although they continued to be generally referred to as "the Proms".
Born in modest circumstances to parents who encouraged his musical talent, Wood started his career as an organist. During his studies at the Royal Academy of Music, he came under the influence of the voice teacher Manuel Garcia and became his accompanist. After similar work for Richard D'Oyly Carte's opera companies on the works of Arthur Sullivan and others, Wood became the conductor of a small operatic touring company. He was soon engaged by the larger Carl Rosa Opera Company. One notable event in his operatic career was conducting the British premiere of Tchaikovsky's Eugene Onegin in 1892.
From the mid-1890s until his death, Wood focused on concert conducting. He was engaged by the impresario Robert Newman to conduct a series of promenade concerts at the Queen's Hall, offering a mixture of classical and popular music at low prices. The series was successful, and Wood conducted annual promenade series until his death in 1944. By the 1920s, Wood had steered the repertoire entirely to classical music. When the Queen's Hall was destroyed by bombing in 1941, the Proms moved to the Royal Albert Hall.
Wood declined the chief conductorships of the New York Philharmonic and Boston Symphony Orchestras, believing it his duty to serve music in the United Kingdom. In addition to the Proms, he conducted concerts and festivals throughout the country and also trained the student orchestra at the Royal Academy of Music. He had an enormous influence on the musical life of Britain over his long career: he and Newman greatly improved access to classical music, and Wood raised the standard of orchestral playing and nurtured the taste of the public, presenting a vast repertoire of music spanning four centuries.
Question: What is the last name of the person in whose operatic career one notable event was was conducting the British premiere of Tchaikovsky's Eugene Onegin in 1892?
Wood.