<http://demo.semadata.org/product/brisk-premium-lgs-racing-spark-plug-23/#product>
<http://schema.org/description>
"Silver is the best conductor of any metal! It conducts 560percent more electricity and 481percent more heat than Platinum, and 276percent more electricity and 177percent more heat than Iridium."
<http://demo.semadata.org/product/brisk-premium-lgs-racing-spark-plug-23/>