<http://schema.org/description>
"You&amp;#039;re used to your smartphone&amp;#039;s vibration alerts, but could the same technology in a shoe really help give the wearer directions?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://electronics.howstuffworks.com/gadgets/other-gadgets/haptic-footwear6.htm>