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"): Fort Pierce is a city in and the county seat of St. Lucie County, Florida, United States.
Relevant evidence: Yes