Question: Submarine Squadron 7 is a squadron of submarines of the United States Navy based at Joint Base Pearl Harbor-Hickam,Pearl Harbor, a lagoon harbor on what island?
Sentence (from "USS Denver (LPD-9)"): At the time of her decommissioning, "Denver" was the oldest deployable warship in the U.S. Navy, and the last active warship to be in Vietnam.
Relevant evidence: No