Question: What served Nelson as his flagship from 6 June 1799 until the end of June 1801, and was one of two British-built 80-gun ships he other being designed by Sir Edward Hunt?
Sentence (from "HMS Caesar (1793)"): She was also one of only two British-built 80-gun ships of the period, the other being HMS Foudroyant (1798).
Relevant evidence: No