question: indifference:cold-blood:enthusiastic
choices.label: A B C D
choices.text: confinement:constraint:liberation tenacity:intensity:openness labor:salary:wage seawater:salt:sodium chloride
explanation: "indifference" and "cold-blood" have similar meanings. "indifference" and "cold-blood" are both opposite to "enthusiastic". both "confinement" and "constraint" have the meaning of strong restraint. "confinement" and "constraint" have similar meanings. "confinement" and "constraint" have an opposite meaning to "liberation". "tenacity" means being tough or strong, unyielding, and "intensity" refers to a very high degree. the two are not similar in meaning. to get a "salary" requires "labor". "labor" and "salary" have different meanings. "salt" is a component of "seawater". "seawater" and "salt" do not have similar meanings.
relation: indifference cold-blood R1.1
relation: confinement constraint R1.1
relation: labor salary R3.10
relation: seawater salt R2.3