Question: The Experimental Oculina Research Reserve preserves the Oculina Banks, a reef of ivory bush coral ("Oculina varicosa") off the coast of Fort Pierce, a city in and the county seat of St. Lucie County, Florida, in which country?
Sentence (from "Fort Pierce, Florida"): As of 2012, the population recorded by the U.S. Census Bureau was 42,645.
Relevant evidence: No