instruction:
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: 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: The origins of the Early Netherlandish school lie in the miniature paintings of the late Gothic period.  This was first seen in manuscript illumination, which after 1380 conveyed new levels of realism, perspective and skill in rendering colour, peaking with the Limbourg brothers and the Netherlandish artist known as Hand G, to whom the most significant leaves of the Turin-Milan Hours are usually attributed. Although his identity has not been definitively established, Hand G, who contributed c. 1420, is thought to have been either Jan van Eyck or his brother Hubert. According to Georges Hulin de Loo, Hand G's contributions to the Turin-Milan Hours "constitute the most marvelous group of paintings that have ever decorated any book, and, for their period, the most astounding work known to the history of art".Jan van Eyck's use of oil as a medium was a significant development, allowing artists far greater manipulation of paint. The 16th-century art historian Giorgio Vasari claimed van Eyck invented the use of oil paint; a claim that, while exaggerated, indicates the extent to which van Eyck helped disseminate the technique. Van Eyck employed a new level of virtuosity, mainly from taking advantage of the fact that oil dries so slowly; this gave him more time and more scope for blending and mixing layers of different pigments, and his technique was quickly adopted and refined by both Robert Campin and Rogier van der Weyden. These three artists are considered the first rank and most influential of the early generation of Early Netherlandish painters. Their influence was felt across northern Europe, from Bohemia and Poland in the east to Austria and Swabia in the south. 
Question: What are the last names of the three artists who are considered the first rank and most influential of the early generation of Early Netherlandish painters?
answer:
Van Eyck.


question:
Passage: The first three symphonies, to which Vaughan Williams assigned titles rather than numbers, form a sub-group within the nine, having programmatic elements, absent from the later six.A Sea Symphony (1910), the only one of the series to include a part for full choir, differs from most earlier choral symphonies in that the choir sings in all the movements. The extent to which it is a true symphony has been debated; in a 2013 study, Alain Frogley describes it as a hybrid work, with elements of symphony, oratorio and cantata. Its sheer length—about eighty minutes—was unprecedented for an English symphonic work, and within its thoroughly tonal construction it contains harmonic dissonances that pre-echo the early works of Stravinsky which were soon to follow.A London Symphony (1911–1913) which the composer later observed might more accurately be called a "symphony by a Londoner", is for the most part not overtly pictorial in its presentation of London. Vaughan Williams insisted that it is "self-expressive, and must stand or fall as 'absolute' music". There are some references to the urban soundscape: brief impressions of street music, with the sound of the barrel organ mimicked by the orchestra; the characteristic chant of the lavender-seller; the jingle of hansom cabs; and the chimes of Big Ben played by harp and clarinet. But commentators have heard—and the composer never denied or confirmed—some social comment in sinister echoes at the end of the scherzo and an orchestral outburst of pain and despair at the opening of the finale. Schwartz comments that the symphony, in its "unified presentation of widely heterogeneous elements", is "very much like the city itself". Vaughan Williams said in his later years that this was his favourite of the symphonies.The last of the first group is A Pastoral Symphony (1921). The first three movements are for orchestra alone; a wordless solo soprano or tenor voice is added in the finale. Despite the title the symphony draws little on the folk-songs beloved of the composer, and the pastoral landscape evoked is not a tranquil English scene, but the French countryside ravaged by war. Some English musicians who had not fought in the First World War misunderstood the work and heard only the slow tempi and quiet tone, failing to notice the character of a requiem in the music and mistaking the piece for a rustic idyll. Kennedy comments that it was not until after the Second World War that "the spectral 'Last Post' in the second movement and the girl's lamenting voice in the finale" were widely noticed and understood. 
Question: What are the precise titles of the first three symphonies that form a sub-group within the nine?
answer:

A Sea Symphony.