ARC Corpus

The ARC Corpus contains 14M unordered, science-related sentences including knowledge relevant to ARC, and is provided to as a starting point for addressing the challenge. The Corpus contains sentences from: science-related documents downloaded from the Web; dictionary definitions from Wiktionary, and articles from Simple Wikipedia that were tagged as science. For details of its construction, see (Clark et al., 2018). Note that use of the corpus for the Challenge is completely optional, and also that systems are not restricted to this corpus. Please see the README included in the download for additional information and terms of use of this corpus.

Sample sentences

As an example, here are the first 10 sentences mentioning both the words "gravity" and "force":

  1. The force of gravity overcomes the nuclear forces which keep protons and neutrons from combining. Then the super cool part- children will use magnets to explore how gravity can easily be overcome by other forces- almost like defying gravity!
  2. On the basis of their observations and analysis, they attempt to discover and explain laws describing the forces of nature, such as gravity, electromagnetism, and nuclear interactions.
  3. In a gravity dam, the force that holds the dam in place against the push from the water is Earth's gravity pulling down on the mass of the dam.
  4. Random motion of the air molecules and turbulence provide upward forces that may counteract the downward force of gravity.
  5. The earth's gravity acts on air molecules to create a force, that of the air pushing on the earth.
  6. The pressure and frictional heat of tectonic forces cause rock to change (metamorphose)
  7. At subduction boundaries, gravity pulls plates back down into the mantle where rock liquefies into magma, completing the rock cycle.
  8. If an object falls from one point to another point inside a gravitational field, the force of gravity will do positive work on the object, and the gravitational potential energy will decrease by the same amount.
  9. The perpendicular component of the force of gravity is directed opposite the normal force and as such balances the normal force.
  10. Whereas previous ideas of motion depended on an outside force to instigate and maintain it (i.e. wind pushing a sail) Copernicus’s theories helped to inspire the concepts of gravity and inertia.