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: In London, Professor Henry Higgins, a scholar of phonetics, believes that the accent and tone of one's voice determines a person's prospects in society ("Why Can't the English?"). At Covent Garden one evening, he meets Colonel Hugh Pickering, himself a phonetics expert who had come all the way from India to see him. Higgins boasts he could teach anyone to speak so well he could pass them off as a duke or duchess at an embassy ball, even the young woman with a strong Cockney accent named Eliza Doolittle who tries to sell them flowers. Eliza's ambition is to work in a flower shop, but her accent makes that impossible ("Wouldn't It Be Loverly"). The following morning, Eliza shows up at Higgins' home, seeking lessons. Pickering is intrigued and offers to cover all the attendant expenses if Higgins succeeds. Higgins agrees, and describes how women ruin lives ("I'm an Ordinary Man").
Eliza's father, Alfred P. Doolittle, a dustman, learns of his daughter's new residence ("With a Little Bit of Luck"). He shows up at Higgins' house three days later, ostensibly to protect his daughter's virtue, but in reality simply to extract some money from Higgins, and is bought off with 5. Higgins is impressed by the man's honesty, his natural gift for language, and especially his brazen lack of morals. Higgins recommends Alfred to a wealthy American who is interested in morality.
Eliza endures Higgins' demanding teaching methods and treatment of her personally ("Just You Wait"). She makes little progress, but just as she, Higgins, and Pickering are about to give up, Eliza finally "gets it" ("The Rain in Spain"); she instantly begins to speak with an impeccable upper class accent ("I Could Have Danced All Night").
Question: What's the last name of the man that will pay for Eliza's lessons, if successful?

Answer: Pickering.

Question: Passage: The Slaters of Wolverhampton are plagued with Mrs. Slater's chronic debilitating asthma and her cooking limited to what comes in canned goods that she can heat in boiling water. Mr. Alan Slater is sick with worry and has a cantankerous personality. Nigel longs for a life that is more than a succession of canned-food dinners made from what can be heated in boiling water. When dinner is burnt, the standard substitute of toast is always served. He loves toast, with the crunchy outside giving way to buttery softness inside. Despite her infrequent forays into cooking meals from scratch, his mother's attempts to improve her cooking change nothing before or after her death. His father continues in widowhood with the same cooking style and frequent dinners of toast. The experience brings Nigel to conclude that he is not liked. Nigel learns from a friend that the way in which he could attempt a better relationship with his father is to cook a meal for him.
His cooking efforts are thwarted by the new housekeeper, the married and "common" Mrs. Joan Potter, who seduces Alan with her apple pie and array of gourmet meals. The two start to spend time together: at one point, she exiting her council house through an upstairs window so as not to be found out by her husband. Without announcement, the Slaters move to the Herefordshire countryside along with Mrs. Potter. Nigel co-exists with her but never accepts her. She makes a competition of cooking when the teenaged Nigel's shows an emerging interest in developing his skills at school home economics class cookery lessons. Mrs. Potter's lemon meringue pie becomes Nigel's quest to learn the secret recipe.
Question: While Nigel's mom has asthma, what makes his dad ill?

Answer: worry.

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 lengthabout eighty minuteswas 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 (19111913) 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 heardand the composer never denied or confirmedsome 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 names of the first three symphonies to which Vaughan Williams assigned titles rather than numbers?

Answer:
A Sea Symphony.