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<http://webisa.webdatacommons.org/242245890>	<http://www.w3.org/ns/prov#value>	"In addition, the chain atoms may be substituted or unsubstituted with atoms other than hydrogen such as hydroxy, keto (???O), or acyl such as acetyl." .
<http://webisa.webdatacommons.org/prov/51414842>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/242245890> .