question: the earth:the universe
choices.label: A B C D
choices.text: cloud:atmosphere desk and chair:classroom tree:branch pencil:ink pen
explanation: "the earth" is part of "the universe". "cloud" refers to the collection of water droplets or gas or ice crystal colloids that stay in the "atmosphere", and "cloud" is not a component of the "atmosphere". "desk and chair" are part of the "classroom". "branch" is part of "tree", "tree" is not part of "branch". a "pencil" is a pen, an "ink pen" is a pen, and a "pencil" is not a component of a "ink pen".
relation: the earth the universe R2.3
relation: desk and chair classroom R2.3
relation: branch tree R2.3
relation: pencil ink pen R2.4