What are chlorine, bromine and iodine?
what are chlorine, bromine and iodine
FreebaseQA-train-3505.P0 FreebaseQA-train-3505.P1 FreebaseQA-train-3505.P2
bromine chlorine iodine
bromine chlorine iodine
m.025svll m.025tkqp m.025rw2h
chemistry.chemical_element.chemical_series chemistry.chemical_element.chemical_series chemistry.chemical_element.chemical_series
m.03gcp
halogen
m.03gcp
halogen
m.03gcp
halogen