question: What are some catalysts used in hydrogen cooling
answer: ferric oxide , activated carbon , platinized asbestos , rare earth metals , uranium compounds , chromic oxide , or some nickel compounds
turker_answer: Ferric oxide , activated carbon , platinized asbestos , rare earth metals , uranium compounds , chromic oxide , or some nickel compounds are some catalysts used in hydrogen cooling
rule-based: Ferric oxide , activated carbon , platinized asbestos , rare earth metals , uranium compounds , chromic oxide , or some nickel compounds are some catalysts used in hydrogen cooling