<http://schema.org/alternativeHeadline>
"When shopping for green carpet, there are a number of factors you should consider. What is the carpet made from? Does it contain any toxic chemicals or volatile organic compounds? Was it responsibly manufactured? Is it recyclable?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/your-home/at-home/stories/buying-eco-friendly-carpet>