"\u03C4" . _:b19596 . _:b19571 . _:b19596 . . _:b19570 _:b19571 . . _:b19571 . _:b19570 . _:b19570 . _:b19596 . "reluctance"@en . . _:b19571 . _:b19596 . _:b19570 .