| http://www.w3.org/ns/prov#value | - o the dissolution of the exposed portion and improves the sensitivity. [0187] The typed of the lactone compound is not particularly limited, and an example thereof is a compound represented by the general formula (L-I) or (L-II): [0188] In general formulae (L-I) and (L-II), X1, X2, X3 and X4, which may be the same or different, each have an atom or atomic group constituting the ring and may each i
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