['Martha Foley and Curt Stager talk about ochre. It’s more than just a color in the Crayola box. It's often mistaken for pollution, but it is a naturally-occurring substance combining harmless bacteria and iron. And it’s been used as paint for thousands of years.', OrderedDict([('@xmlns:itunes', 'http://www.itunes.com/dtds/podcast-1.0.dtd'), ('#text', 'Martha Foley and Curt Stager talk about ochre. It’s more than just a color in the Crayola box. It's often mistaken for pollution, but it is a naturally-occurring substance combining harmless bacteria and iron. And it’s been used as paint for thousands of years.')])]