<http://webisa.webdatacommons.org/125649836>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/prov/368251140>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/125649836> .
<http://webisa.webdatacommons.org/125649836>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/125649836>	<http://www.w3.org/ns/prov#value>	"For purposes of the present invention, though the preferred mechanism for controlling the rotation of the bichromal or polychromal elements is through the use of an electrical field, the rotation of the elements can also be caused by a magnetic field, light, or other means of controlling the rotation of the bichromal or polychromal elements." .