In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
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Question: passage: Expo 2020 will be held in Dubai, United Arab Emirates, as a Registered Exposition.
question: do we still have the world's fair?

Answer: Yes

Question: passage: Citric acid can be added to ice cream as an emulsifying agent to keep fats from separating, to caramel to prevent sucrose crystallization, or in recipes in place of fresh lemon juice. Citric acid is used with sodium bicarbonate in a wide range of effervescent formulae, both for ingestion (e.g., powders and tablets) and for personal care (e.g., bath salts, bath bombs, and cleaning of grease). Citric acid sold in a dry powdered form is commonly sold in markets and groceries as ''sour salt'', due to its physical resemblance to table salt. It has use in culinary applications, as an alternative to vinegar or lemon juice, where a pure acid is needed.
question: can lemon juice be used as citric acid?

Answer: Yes

Question: passage: The American robin begins to breed shortly after returning to its summer range. It is one of the first North American bird species to lay eggs, and normally has two to three broods per breeding season, which lasts from April to July.
question: do robins have more than one set of eggs per year?

Answer:
Yes