This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
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Question: Passage: At the centre of this wing is the famous balcony with the Centre Room behind its glass doors. This is a Chinese-style saloon enhanced by Queen Mary, who, working with the designer Sir Charles Allom, created a more "binding" Chinese theme in the late 1920s, although the lacquer doors were brought from Brighton in 1873. Running the length of the piano nobile of the east wing is the great gallery, modestly known as the Principal Corridor, which runs the length of the eastern side of the quadrangle. It has mirrored doors, and mirrored cross walls reflecting porcelain pagodas and other oriental furniture from Brighton. The Chinese Luncheon Room and Yellow Drawing Room are situated at each end of this gallery, with the Centre Room obviously placed in the centre. Question: The Principle Corridor features which type of doors?

Answer: mirrored doors

Question: Passage: Apollo and his sister Artemis can bring death with their arrows. The conception that diseases and death come from invisible shots sent by supernatural beings, or magicians is common in Germanic and Norse mythology. In Greek mythology Artemis was the leader (, "hegemon") of the nymphs, who had similar functions with the Nordic Elves. The "elf-shot" originally indicated disease or death attributed to the elves, but it was later attested denoting stone arrow-heads which were used by witches to harm people, and also for healing rituals. Question: Who is Apollo's sister?

Answer: Artemis

Question: Passage: Health care and emergency medical service in the city of Paris and its suburbs are provided by the Assistance publique - Hopitaux de Paris (AP-HP), a public hospital system that employs more than 90,000 people (including practitioners, support personnel, and administrators) in 44 hospitals. It is the largest hospital system in Europe. It provides health care, teaching, research, prevention, education and emergency medical service in 52 branches of medicine. The hospitals receive more than 5.8 million annual patient visits. Question: How many patients visit the hospitals annually?

Answer:
5.8 million