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<http://webisa.webdatacommons.org/404205952>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/215812655>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/404205952> .
<http://webisa.webdatacommons.org/404205952>	<http://www.w3.org/ns/prov#value>	"X is a halogen atom, preferably a chlorine, bromine or iodine atom, more preferably a chlorine atom." .