Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Ex Input:
Context: From the outside, the skin looks plain and simple, as you can see in Figure 16.5. But at a cellular level, theres nothing plain or simple about it. A single square inch of skin contains about 20 blood vessels, hundreds of sweat glands, and more than a thousand nerve endings. It also contains tens of thousands of pigment-producing cells. Clearly, there is much more to skin than meets the eye! For a dramatic introduction to the skin, watch this video: MEDIA Click image to the left or use the URL below. URL: The skin is only about 2 mm thick, or about as thick as the cover of a book. Although it is very thin, it consists of two distinct layers, called the epidermis and the dermis. You can see both layers and some of their structures in Figure 16.6. Refer to the figure as you read about the epidermis and dermis below. The epidermis is the outer layer of skin. It consists almost entirely of epithelial cells. There are no blood vessels, nerve endings, or glands in this skin layer. Nonetheless, this layer of skin is very active. It is constantly being renewed. How does this happen? 1. The cells at the bottom of the epidermis are always dividing by mitosis to form new cells. 2. The new cells gradually move up through the epidermis toward the surface of the body. As they move, they produce the tough, fibrous protein called keratin. 3. By the time the cells reach the surface, they have filled with keratin and died. On the surface, the dead cells form a protective, waterproof layer. 4. Dead cells are gradually shed from the surface of the epidermis. As they are shed, they are replaced by other dead cells that move up from below. The epidermis also contains cells called melanocytes. You can see a melanocyte in Figure 16.7. Melanocytes produce melanin. Melanin is a brown pigment that gives skin much of its color. Everyones skin has about the same number of melanocytes per square inch. However, the melanocytes of people with darker skin produce more melanin. The amount of melanin that is produced depends partly on your genes and partly on how much ultraviolet light strikes your skin. The more light you get, the more melanin your melanocytes produce. This explains why skin tans when its exposed to sunlight. The dermis is the inner layer of skin. It is made of tough connective tissue. The dermis is attached to the epidermis by fibers made of the protein collagen. The dermis is where most skin structures are located. Look again at Figure pain, pressure, and temperature. If you cut your skin and it bleeds, the cut has penetrated the dermis and damaged a blood vessel. The cut probably hurts as well because of the nerve endings in this skin layer. The dermis also contains hair follicles and two types of glands. You can see some of these structures in Figure 16.8. Hair follicles are structures where hairs originate. Each hair grows out of a follicle, passes up through the epidermis, and extends above the skin surface. Sebaceous glands are commonly called oil glands. They produce an oily substance called sebum. Sebum is secreted into hair follicles. Then it makes its way along the hair shaft to the surface of the skin. Sebum waterproofs the hair and skin and helps prevent them from drying out. Sweat glands produce the salty fluid known as sweat. Sweat contains excess water, salts, and other waste products. Each sweat gland has a duct that passes through the epidermis. Sweat travels from the gland through the duct and out through a pore on the surface of the skin. You couldnt survive without your skin. It has many important functions. In several ways, it helps maintain homeostasis. The main function of the skin is controlling what enters and leaves the body. It prevents the loss of too much water from the body. It also prevents bacteria and other microorganisms from entering the body. Melanin in the epidermis absorbs ultraviolet light. This prevents the light from reaching and damaging the dermis. The skin helps maintain a constant body temperature. It 
 Question: __oily substance secreted by glands in the skin

Ex Output:
sebum


Ex Input:
Context: This article needs an improved plot summary. (November 2015) Sidhu (Akshay Kumar) is a lowly vegetable cutter at a roadside food stall in the Chandni Chowk section of Delhi, who consults astrologers, tarot card readers, and fake fakirs despite his foster father Dada's (Mithun Chakraborty) exhortations. When two strangers from China claim him as a reincarnation of war hero 'Liu Shen' and take him to China, Sidhu, encouraged by trickster Chopstick (Ranvir Shorey), believes he will be feted as a hero, unaware of his own recruitment to assassinate the smuggler Hojo (Gordon Liu). Sidhu travels to China with Chopstick. Along the way he meets Sakhi (Deepika Padukone), the Indian-Chinese spokesmodel known as Ms. Tele Shoppers Media, or Ms. TSM, who also appears in China. Her twin sister Suzy, known as the femme fatale Meow Meow, works for Hojo, not knowing Hojo tried to kill her father, Inspector Chiang (Roger Yuan). Sidhu, through a series of accidents, initially eludes Hojo, but Hojo eventually exposes him as a fraud. Thereupon Hojo kills Dada, and Sidhu is beaten and urinated on by Hojo. Injured and disgraced Sidhu vows revenge. He thereafter encounters an amnesiac vagrant, whom he later identifies to Sakhi as Inspector Chiang. Chiang later recovers his memory and trains Sidhu in kung fu. When Hojo again meets with Sidhu, Suzy injures Chiang; but upon seeing Sakhi, betrays Hojo. Sidhu fights Hojo in single combat, eventually using a modified vegetable-cutting technique to overwhelm him. In the aftermath, Sidhu opens a vegetable stall in China, but is recruited to fight for some African pygmies. The film thereupon concludes with the announcement "To be Continued Chandni Chowk to Africa". 
 Question: What is the conman's name?

Ex Output:
chopstick


Ex Input:
Context: After the 2004 Asian tsunami disaster, four independent volunteers, with little money and no experience, race off to volunteer in tsunami ravaged Sri Lanka. They meet up by fate at the Colombo airport and form a volunteer team. They rent a van, fill it with supplies and start driving down the coast to see where they can help. They stumble into a tribal village called Peraliya, which has been destroyed by a forty foot wave. During the time the wave hit Peraliya, a train called "The Queen of the Sea" was passing by and was washed away killing over 2500 passengers and villagers. The Four volunteers set up a first aid station and found themselves in charge of running a refugee camp with over 3000 people. Their initial two week journey turns into a year long odyssey of heartbreak and hope as the villagers turn against them when donated tsunami relief money does not materialize. The volunteers concentrate on the bigger picture and break every rule in the 'Disaster Aid Books'. 
 Question: What kind of natural disater was ravaging Sri Lanka?

Ex Output:

tsunami