question: student:male student:female student
choices.label: A B C D
choices.text: rotation:clockwise:counterclockwise integer:positive number:negative number cutlery:plate:chopsticks word:content word:function word
explanation: "male students" and "female students" are completely complementary, with "male students" and "female students" each being a type of "students". "clockwise" and "counterclockwise" are completely complementary. "clockwise" "rotate" and "counterclockwise" both rotate by the direction. "positive numbers" and "negative numbers" are in one category, and in addition to the two, there is 0. "plates" and "chopsticks" refer to one category of tableware. "content words" and "function words" are completely complementary. the "content word" and the "function word" each a kind of "words".
relation: male student female student R2.5
relation: clockwise counterclockwise R2.5
relation: positive number negative number R2.6
relation: plate chopsticks R2.6
relation: content word function word R2.5