GMAT Sentence Correction (SC) | Re: In June of 1987, The Bridge of Trinquetaille, Vincent van

An appositive, i.e. a noun (or noun phrase) modifying another noun (or noun phrase).

Here "the second highest price ever paid for a painting at auction" is a noun phrase ("price" is the noun preceded by an adjective, "the second highest" and followed by a past participle modifier "ever paid for a painting at auction"). This noun phrase refers
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