Which scientist discovered the elements Calcium, Barium and Potassium?
which scientist discovered the elements calcium, barium and potassium
FreebaseQA-train-2030.P0 FreebaseQA-train-2030.P1 FreebaseQA-train-2030.P2
barium calcium potassium
barium calcium potassium
m.025svml m.025tkqy m.025s7j4
chemistry.chemical_element.discoverer chemistry.chemical_element.discoverer chemistry.chemical_element.discoverer
m.03qpj
humphry davy
m.03qpj
humphry davy
m.03qpj
humphry davy