| http://www.w3.org/ns/prov#value | - Examples of the aryl groups include ones having 1 to 10 carbon atoms, such as phenyl, naphthyl, and indenyl, and heteroaryl groups having 1 to 10 carbon atoms and containing one heteroatom selected from the group consisting of nitrogen, oxygen, and sulfur atoms, such as furyl, thienyl, pyrrolyl, pyridyl, and quinolyl.
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