Here's a short story:

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has the longest rotation period (243 days) of any planet in the Solar System and rotates in the opposite direction to most other planets. It has no natural satellites. It is named after the Roman goddess of love and beauty. It is the second-brightest natural object in the night sky after the Moon, reaching an apparent magnitude of −4.6 – bright enough to cast shadows at night and, rarely, visible to the naked eye in broad daylight. Orbiting within Earth's orbit, Venus is an inferior planet and never appears to venture far from the Sun; its maximum angular distance from the Sun (elongation) is 47.8°. 

Venus is a terrestrial planet and is sometimes called Earth's "sister planet" because of their similar size, mass, proximity to the Sun, and bulk composition. It is radically different from Earth in other respects. It has the densest atmosphere of the four terrestrial planets, consisting of more than 96% carbon dioxide. The atmospheric pressure at the planet's surface is 92 times that of Earth, or roughly the pressure found underwater on Earth. Venus is by far the hottest planet in the Solar System, with a mean surface temperature of , even though Mercury is closer to the Sun. Venus is shrouded by an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light. It may have had water oceans in the past, but these would have vaporized as the temperature rose due to a runaway greenhouse effect. The water has probably photodissociated, and the free hydrogen has been swept into interplanetary space by the solar wind because of the lack of a planetary magnetic field. Venus's surface is a dry desertscape interspersed with slab-like rocks and is periodically resurfaced by volcanism. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: What planet is this article talking about?
Guess: Venus

Question: Give me one unique feature of venus that makes it different from the other planets?
Guess: rotates in the opposite direction

Question: What is it named after?
Guess: Roman goddess of love and beauty

Question: What is its rotation period?
Guess: 243 days

Question: Is it the second planet from the sun?
Guess: yes

Question: Does it venture far from the sun?
Guess: No

Question: What is Venus sometimes referred to as?
Guess: Earth's "sister planet"

Question: why so?
Guess: similar size, mass, proximity to the Sun, and bulk composition

Now answer the following question in the same format.

Question: What percentage of carbondioxide does it comprise of?

96%