radium can be used for separating a magnetic spiritual from a rivers of a magnetic and nonmagnetic spiritual
galena is not mineral. radium_therapy is radiotherapy. radium is radioactive_substance. radium_therapy is not radiotherapy. radium is metallic_element. radium is not metallic_element. mahogany_tree is not tree. blackberry is bramble_bush. blackberry is not bramble_bush. radium is not radioactive_substance.