question: linear vibration:nonlinear vibration:vibration
choices.label: A B C D
choices.text: petal:stamen:morning glory carnivore:herbivore:animal investors:operators:market entities main contradiction:secondary contradiction:contradiction
explanation: "linear vibration" and "non linear vibration" are both "vibration", and "linear vibration" and "non-linear vibration" are the same kind. both "petals" and "stamens" are components of flowers, and there are others besides "petals" and "stamens". "herbivores" and "carnivores" are the same kind, and there are others besides "herbivores" and "carnivores". "market entities" and "investors" are of the same kind, except for "market entities" and "investors", there are other types. "main contradiction" and "secondary contradiction" are both "contradiction". "main contradiction" and "secondary contradiction" are of the same kind.
relation: linear vibration nonlinear vibration R2.5
relation: petal stamen R2.6
relation: herbivore carnivore R2.6
relation: market entities investors R2.6
relation: main contradiction secondary contradiction R2.5