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<http://webisa.webdatacommons.org/prov/516188933>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/433146891> .
<http://webisa.webdatacommons.org/433146891>	<http://www.w3.org/ns/prov#value>	"We know that 'a' is a decimal number and both 'b' and 'c'" .
<http://webisa.webdatacommons.org/433146891>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mathforum.org> .
<http://webisa.webdatacommons.org/prov/516189422>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/433146891> .