<http://webisa.webdatacommons.org/prov/516199914>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/41524294> .
<http://webisa.webdatacommons.org/41524294>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/41524294>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/41524294>	<http://www.w3.org/ns/prov#value>	" 23. An ink according to claim 1 wherein M is a calcium cation, y is 2, and the chromogen is of the formula ##STR00230##" .