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.
--------
Question: Passage: Conquistadors often wore steel armour that included chainmail and helmets. The Spanish were sufficiently impressed by the quilted cotton armour of their Maya enemies that they adopted it in preference to their own steel armour. Maya weaponry was not sufficiently powerful to justify the discomfort of wearing European armour. Quilted cotton armour, although still uncomfortably hot, was flexible and weighed much less. The Maya armour was adapted by the Spanish, who used knee-length quilted cotton tunics and Spanish-style caps. Horsemen wore long quilted cotton leg protectors; their horses were also protected with padded cotton armour. After the final push to the Petén lakes in early 1697, the Spanish recorded that they left with their garrison over 50 Dutch- and French-made muskets, three 1-pound (0.45 kg) calibre light cannons (piezas) cast from iron and mounted on carriages, four iron and two bronze pedreros (2-chambered stone-launchers) and six of at least eight bronze light cannons (known as esmiriles). 
Question: Who had four iron and two bronze pedreros?

Answer: the Spanish.


Question: Passage: Whales are a widely distributed and diverse group of fully aquatic placental marine mammals. They are an informal grouping within the infraorder Cetacea, usually excluding dolphins and porpoises. Whales, dolphins and porpoises belong to the order Cetartiodactyla, which consists of even-toed ungulates. Their closest living relatives are the hippopotamuses, having diverged about 40 million years ago. The two parvorders of whales, baleen whales (Mysticeti) and toothed whales (Odontoceti), are thought to have split apart around 34 million years ago.  Whales consist of eight extant families: Balaenopteridae (the rorquals), Balaenidae (right whales), Cetotheriidae (the pygmy right whale), Eschrichtiidae (the grey whale), Monodontidae (belugas and narwhals), Physeteridae (the sperm whale), Kogiidae (the dwarf and pygmy sperm whale), and Ziphiidae (the beaked whales).
Whales are creatures of the open ocean; they feed, mate, give birth, suckle and raise their young at sea. So extreme is their adaptation to life underwater that they are unable to survive on land. Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 metric tons (210 short tons) blue whale, which is the largest creature that has ever lived. The sperm whale is the largest toothed predator on earth. Several species exhibit sexual dimorphism, in that the females are larger than males. Baleen whales have no teeth; instead they have plates of baleen, a fringe-like structure used to expel water while retaining the krill and plankton which they feed on. They use their throat pleats to expand the mouth to take in huge gulps of water. Balaenids have heads that can make up 40% of their body mass to take in water. Toothed whales, on the other hand, have conical teeth adapted to catching fish or squid. Baleen whales have a well developed sense of "smell", whereas toothed whales have well-developed hearing − their hearing, that is adapted for both air and water, is so well developed that some can survive even if they are blind. Some species, such as sperm whales, are well adapted for diving to great depths to catch squid and other favoured prey. 
Question: What are the types of whales that use throat pleats to expand the mouth?

Answer: Baleen.


Question: 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?

Answer:
Wood.