TASK DEFINITION: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
PROBLEM: Passage: While walking by Minnie Mouse's house one day, Mickey Mouse is enticed by the aroma of a cake Minnie is baking. Promised a slice if he cleans the yard, Mickey immediately jumps into raking up the fall leaves littering Minnie's lawn. While working in the yard, a small tornado as tall as Mickey comes along and makes his work more complicated: first the youngster hops into the basket and leaps over Mickey countless times before he pounds the basket in place, shaking it to check if it's snared. After he throws the leaves in, the child pounces on him, spins him around, grabs his hat, and taunts him. Angered, Mickey pounces on the youngster, who spins him around and scoots away, leaving Mickey's hat on his head. Both Mickey and the youngster have a tug'o'war on the basket until it shatters on Mickey, who is entangled. Then, the child makes an army of leaves and marches around the house. Mickey manages to trap the child with a sack, which he ties and punts away. The tornadoling retaliates with just 2 punches, then attempts to get away, with Mickey hot on his heels. As Mickey chases him with a rake the terrified child calls out for help. The mother tornado, unamused with Mickey tormenting her offspring (and unaware of what her child has been doing to Mickey), furiously pursues him with a look of relentlessness on her face. Her angry rampage causes chaos and destruction through the farm fields and grasslands until she lifts the lower portion of her gigantic body and slows Mickey's movement.
When the twister finally sucks Mickey in, he is sent for a spin until he ends up falling into Minnie's water fountain. After the two tornados leave, Minnie, unaware of the whole incident finds her garden in a complete mess causing Mickey to get her cake thrown in his face which he proceeds to eat.

SOLUTION: What is the first name of the person who is promised a slice of cake if they clean the yard?

PROBLEM: Passage: From the age of six and for the rest of his life Saint-Saëns composed mélodies, writing more than 140. He regarded his songs as thoroughly and typically French, denying any influence from Schubert or other German composers of Lieder. Unlike his protégé Fauré, or his rival Massenet, he was not drawn to the song cycle, writing only two during his long career – Mélodies persanes ("Persian Songs", 1870) and Le Cendre rouge ("The Red Ash Tree", 1914, dedicated to Fauré). The poet whose works he set most often was Victor Hugo; others included Alphonse de Lamartine, Pierre Corneille, Amable Tastu, and, in eight songs, Saint-Saëns himself: among his many non-musical talents he was an amateur poet. He was highly sensitive to word setting, and told the young composer Lili Boulanger that to write songs effectively musical talent was not enough: "you must study the French language in depth; it is indispensable." Most of the mélodies are written for piano accompaniment, but a few, including "Le lever du soleil sur le Nil" ("Sunrise over the Nile", 1898) and "Hymne à la paix" ("Hymn to Peace", 1919), are for voice and orchestra. His settings, and chosen verses, are generally traditional in form, contrasting with the free verse and less structured forms of a later generation of French composers, including Debussy.Saint-Saëns composed more than sixty sacred vocal works, ranging from motets to masses and oratorios. Among the larger-scale compositions are the Requiem (1878) and the oratorios Le déluge (1875) and The Promised Land (1913) with an English text by Herman Klein. He was proud of his connection with British choirs, commenting, "One likes to be appreciated in the home, par excellence, of oratorio." He wrote a smaller number of secular choral works, some for unaccompanied choir, some with piano accompaniment and some with full orchestra. In his choral works, Saint-Saëns drew heavily on tradition, feeling that his models should be Handel, Mendelssohn and other earlier masters of the genre. In Klein's view, this approach was old-fashioned, and the familiarity of Saint-Saëns's treatment of the oratorio form impeded his success in it.

SOLUTION: What were the names of the two people, who unlike Saint-Saëns, were drawn to the song cycle?

PROBLEM: Passage: The most promising but also the most challenging method of isotope separation was gaseous diffusion. Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molecular mass, so in a box containing a semi-permeable membrane and a mixture of two gases, the lighter molecules will pass out of the container more rapidly than the heavier molecules. The gas leaving the container is somewhat enriched in the lighter molecules, while the residual gas is somewhat depleted. The idea was that such boxes could be formed into a cascade of pumps and membranes, with each successive stage containing a slightly more enriched mixture. Research into the process was carried out at Columbia University by a group that included Harold Urey, Karl P. Cohen and John R. Dunning.In November 1942 the Military Policy Committee approved the construction of a 600-stage gaseous diffusion plant. On 14 December, M. W. Kellogg accepted an offer to construct the plant, which was codenamed K-25. A cost plus fixed fee contract was negotiated, eventually totaling $2.5 million. A separate corporate entity called Kellex was created for the project, headed by Percival C. Keith, one of Kellogg's vice presidents. The process faced formidable technical difficulties. The highly corrosive gas uranium hexafluoride had to be used, as no substitute could be found, and the motors and pumps would have to be vacuum tight and enclosed in inert gas. The biggest problem was the design of the barrier, which would have to be strong, porous and resistant to corrosion by uranium hexafluoride. The best choice for this seemed to be nickel, and Edward Adler and Edward Norris created a mesh barrier from electroplated nickel. A six-stage pilot plant was built at Columbia to test the process, but the Norris-Adler prototype proved to be too brittle. A rival barrier was developed from powdered nickel by Kellex, the Bell Telephone Laboratories and the Bakelite Corporation. In January 1944, Groves ordered the Kellex barrier into production.

SOLUTION:
What is the full name of the person Percival C. Keith worked for?