<http://webisa.webdatacommons.org/341175720>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/341175720>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<europa.eu> .
<http://webisa.webdatacommons.org/prov/198758392>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/341175720> .
<http://webisa.webdatacommons.org/341175720>	<http://www.w3.org/ns/prov#value>	"E-mail: kalle.salonen@pp.nic.fi Photosynthesis oxygen production by Elodea Densa I have been interested in photosynthesis for a long time, especially to see how plants produce oxygen." .