<http://webisa.webdatacommons.org/261577143>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/167259346>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/261577143> .
<http://webisa.webdatacommons.org/261577143>	<http://www.w3.org/ns/prov#value>	"By applying a combination of pressure and heat, e.g. by frictional heat by striking the coating with a fingernail, the chromogenic compound is released to react with the color developer to produce a visible, colored image in the form of the message." .
<http://webisa.webdatacommons.org/261577143>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .