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.
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Question: Passage: The remaining vampire covens are on the verge of annihilation by the Lycans. Both species are searching for Selene: the vampires seek justice for the death of Viktor, while the Lycans, led by Marius, intend to use her to locate Eve, whose blood holds the key to building an army of vampire-werewolf hybrids.
Semira, a council member of the Eastern Coven, tells Thomas she wants Selene to be granted clemency and to train the coven's neophyte Death Dealers. She asks Thomas to plead Selene's case before the full council; the plea is successful and the council reluctantly agrees to a pardon in exchange for Selene's help. Selene arrives with David. Semira has Varga, her ally and lover, poison Selene and slaughter the trainees, framing Selene for the atrocity. With Selene in her power, Semira begins draining her blood, which she intends to drink to steal her power. Thomas and David attempt a rescue, but are attacked by Semira and Varga. Thomas is killed, but David and Selene escape.
The pair takes refuge at the Nordic Coven, pursued by Alexia, an Eastern Coven vampire dispatched by Semira. At Var Dohr, the Nordic Coven stronghold, Elder Vidar reveals that David is the son of High Elder Amelia, and thus the legitimate heir to the Eastern Coven.
Meanwhile, Alexia has told Marius, who is secretly her lover, that Selene is going to the Nordic Coven. Marius and his Lycans attack that coven. Selene and David fight alongside the Nordic vampires, who are led by Vidar's daughter Lena. Selene engages Marius in single combat, but he is too powerful in werewolf form, and she is stabbed by Alexia. Marius demands to know Eve's location, but Selene insists she does not know; Alexia confirms this after tasting blood from her sword. Marius sounds the retreat. Selene deliberately slides herself under the now broken ice of the lake, telling herself that this is the 'path'. 
Question: What are the first names of the people who take refuge at the Nordic Coven?

Answer: David.


Question: Passage: John Ottway works in Alaska as a marksman for an undisclosed oil company, killing grey wolves that threaten the drillers. On his last day on the job, he sees a driller  being pursued by a wolf and shoots it. He then watches and listens as the wolf takes a final breath ending in a long deep exhale. That evening, Ottway writes a letter "without purpose" to his wife, Ana, explaining his plans to commit suicide. He hears a distant wolf howl and doesn't follow through.
The next day, Ottway and other oil drillers board a plane. During the flight, Ottway dreams of sleeping with his wife in bed but is awakened by a loud bang. He buckles up in fear of a possible plane crash. Shortly afterwards, the back of the plane is torn off and it crashes. Eight people including Ottway survive the crash. However, a young oil worker, Lewenden, dies of his injuries as Ottway sadly watches. Taking charge, Ottway sets the survivors on the task of building a fire. While doing this, he discovers a corpse, and is attacked by the grey wolf feeding on it. After saving Ottway, the group soon surmises that they are in the wolves' territory. They decide to take turns keeping watch for the predators.
Later, Hernandez is killed by two wolves. Ottway suggests they leave the crash site, but Diaz questions his leadership. While searching for the wallets of their deceased colleagues, intending to return them to their families, Diaz finds an emergency wrist watch containing a radio beacon. The group then leaves the site. 
Question: What is the last name of the person attacked by a grey wolf that was feeding on a corpse?

Answer: Ottway.


Question: Passage: Alkan's large scale Duo (in effect a sonata) Op. 21 for violin and piano (dedicated to Chrétien Urhan) and his Piano Trio Op. 30 appeared in 1841. Apart from these, Alkan published only a few minor works between 1840 and 1844, after which a series of virtuoso works was issued, many of which he had played at his successful recitals at Érard and elsewhere; these included the Marche funèbre (Op. 26), the Marche triomphale  (Op. 27) and Le chemin de fer (also published, separately, as Op. 27). In 1847 appeared the Op. 31 Préludes and his first large-scale unified piano work, the Grande sonate Les quatre âges (Op. 33). The sonata is structurally innovative in two ways; each movement is slower than its predecessor, and the work anticipates the practice of progressive tonality, beginning in D major and ending in G♯ minor. Dedicated to Alkan Morhange, the sonata depicts in its successive movements its 'hero' at the ages of 20 (optimistic), 30 ("Quasi-Faust", impassioned and fatalistic), 40 (domesticated) and 50 (suffering: the movement is prefaced by a quotation from Aeschylus's Prometheus Unbound). In 1848 followed Alkan's set of 12 études dans tous les tons majeurs Op. 35, whose substantial pieces range in mood from the hectic Allegro barbaro (no. 5) and the intense Chant d'amour-Chant de mort (Song of Love – Song of Death) (no. 10) to the descriptive and picturesque L'incendie au village voisin (The Fire in the Next Village) (no. 7).A number of Alkan's compositions from this period were never performed and have been lost. Among the missing works are some string sextets and a full-scale orchestral symphony in B minor, which was described in an article in 1846 by the critic Léon Kreutzer, to whom Alkan had shown the score. Kreutzer noted that the introductory adagio of the symphony was headed "by Hebrew characters in red ink ... This is no less than the verse from Genesis: And God said, Let there be light: and there was light." Kreutzer opined that, set beside Alkan's conception, Joseph Haydn's Creation was a "mere candle (lampion)." A further missing work is a one-act opera, mentioned frequently in the French musical press of 1846-7 as being shortly to be produced at the Opéra-Comique, which however never materialized. Alkan also referred to this work in a letter of 1847 to the musicologist François-Joseph Fétis, stating that it had been written "a few years ago." Its subject, title and librettist remain unknown. 
Question: What is the full name of the musicologist that the musician who created Piano Trio Op. 30 wrote a letter to referring to a missing one-act opera?

Answer:
François-Joseph Fétis.