input: Make use of the article to answer the questions. The immune system is a system of many biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue. In many species, the immune system can be classified into subsystems, such as the innate immune system versus the adaptive immune system, or humoral immunity versus cell-mediated immunity. In humans, the bloodbrain barrier, bloodcerebrospinal fluid barrier, and similar fluidbrain barriers separate the peripheral immune system from the neuroimmune system which protects the brain.

Pathogens can rapidly evolve and adapt, and thereby avoid detection and neutralization by the immune system; however, multiple defense mechanisms have also evolved to recognize and neutralize pathogens. Even simple unicellular organisms such as bacteria possess a rudimentary immune system, in the form of enzymes that protect against bacteriophage infections. Other basic immune mechanisms evolved in ancient eukaryotes and remain in their modern descendants, such as plants and invertebrates. These mechanisms include phagocytosis, antimicrobial peptides called defensins, and the complement system. Jawed vertebrates, including humans, have even more sophisticated defense mechanisms, including the ability to adapt over time to recognize specific pathogens more efficiently. Adaptive (or acquired) immunity creates immunological memory after an initial response to a specific pathogen, leading to an enhanced response to subsequent encounters with that same pathogen. This process of acquired immunity is the basis of vaccination. 1. what is the article about?
2. how is it defined?
3. what must it do to work correctly?
4. are they also called something else?
5. is the worm helpful?
6. do pathogens change?
7. slowly?
8. how are brains protected?
9. are they solid?
10. what are they composed of?
numbered_answers: 1. The immune system
2. system of many biological structures
3. detect a wide variety of agents
4. pathogens
5. No
6. Yes
7. No
8. brain barriers separate the peripheral immune system from the neuroimmune system
9. No
10. blood and fluids

input: Make use of the article to answer the questions. (CNN) -- Four days after suffering a humbling defeat to Simona Halep, Serena Williams turned the tables on the Romanian to win a fifth WTA Finals title with a crushing straight sets 6-3 6-0 victory in Singapore Sunday.

Williams had called her 6-2 6-0 reverse in round-robin group play Wednesday "embarrassing" and she set about putting the record straight in the title match.

Fourth-ranked Halep began where she left off to take an early 2-1 lead with a break of service, but this was a very different Williams on the other side of the net.

The world number one immediately broke back and a further break to lead 5-3 was the start of eight games in a row without reply.

A total of 26 winners flowed from the racket of the 33-year-old American veteran -- who was winning the end of season crown for the third straight year -- the first player since Monica Seles in 1992 to achieve the feat.

"She was playing so well at the beginning and I told myself to just relax and once I did that I started playing better and making my shots," Williams told the official WTA website.

"I lost to her a couple of days ago so I knew she was capable of playing really well, but I knew I had to play better if I wanted to win.

Williams' participation in the WTA Finals had been in doubt after she pulled out of a warmup tournament in China with a knee injury. 1. Who won her fifth WTA title?
2. What was the score?
3. Who did she play?
4. Why did she not play in China?
numbered_answers: 1. Serena Williams
2. 6-2 6-0
3. Halep
4. knee injury

input: Make use of the article to answer the questions. Islamabad is the capital city of Pakistan located within the federal Islamabad Capital Territory. With a population of two million, it is the 10th largest city of Pakistan, while the larger Islamabad-Rawalpindi metropolitan area is the third largest in Pakistan with a population exceeding fivemillion. The city is the political seat of Pakistan and is administered by the Islamabad Metropolitan Corporation, supported by the Capital Development Authority (CDA).

Islamabad is located in the Pothohar Plateau in the northeastern part of the country, between Rawalpindi District and the Margalla Hills National Park to the north. The region has historically been a part of the crossroads of Punjab and Khyber Pakhtunkhwa with the Margalla Pass acting as the gateway between the two regions.

Islamabad was built during the 1960s to replace Karachi as Pakistan's capital. The city's master-plan divides the city into eight zones, including administrative, diplomatic enclave, residential areas, educational sectors, industrial sectors, commercial areas, and rural and green areas. The city is known for the presence of several parks and forests, including the Margalla Hills National Park and Shakarparian Park. The city is home to several landmarks, including the Faisal Mosque, the largest mosque in South Asia and the fourth largest in the world. Other landmarks include the Pakistan's National Monument and Democracy Square. 1. When was Islamabad built?
2. How many zones is it divided into?
3. What is it the capital of?
4. Is it part of a territory?
5. Which one?
6. Was it always the capital?
7. What came before it?
8. Was it created specifically to be the capital?
9. What is it known for?
10. Name one of the parks?
11. Are there any religious landmarks?
12. A church?
13. What then?
14. Is it a small one?
15. How big is it?
16. And in the world?
17. How many people live in the city?
18. What type of geographic area is it a part of?
19. Is it in the Northeast?
20. What is the name of the square?
numbered_answers:
1. during the 1960s
2. eight
3. Pakistan
4. yes
5. the federal Islamabad Capital Territory
6. no
7. Karachi
8. yes
9. the presence of several parks and forests
10. Margalla Hills National Park
11. yes
12. no
13. a Mosque
14. no
15. it's the largest mosque in South Asia
16. the fourth largest
17. two million
18. a Plateau
19. yes
20. Democracy Square