<http://webisa.webdatacommons.org/prov/386307275>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/255531494> .
<http://webisa.webdatacommons.org/255531494>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/255531494>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.fr> .
<http://webisa.webdatacommons.org/255531494>	<http://www.w3.org/ns/prov#value>	"Because the feedback signal is dependent on the material's optical properties, feedback signals at multiple wavelengths can be used as a method for identifying different types of tissue." .